674481869 has 4 divisors (see below), whose sum is σ = 687207996. Its totient is φ = 661755744.

The previous prime is 674481859. The next prime is 674481881. The reversal of 674481869 is 968184476.

674481869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160326244 + 514155625 = 12662^2 + 22675^2 .

It is a cyclic number.

It is not a de Polignac number, because 674481869 - 2⁴ = 674481853 is a prime.

It is a super-2 number, since 2×674481869² = 909851583219466322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 12726073 = 674481869 / (6 + 7 + 4 + 4 + 8 + 1 + 8 + 6 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 674481869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674481859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6362984 + ... + 6363089.

It is an arithmetic number, because the mean of its divisors is an integer number (171801999).

Almost surely, 2^674481869 is an apocalyptic number.

It is an amenable number.

674481869 is a deficient number, since it is larger than the sum of its proper divisors (12726127).

674481869 is a wasteful number, since it uses less digits than its factorization.

674481869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12726126.

The product of its digits is 2322432, while the sum is 53.

The square root of 674481869 is about 25970.7887635320. The cubic root of 674481869 is about 876.9808159757.

The spelling of 674481869 in words is "six hundred seventy-four million, four hundred eighty-one thousand, eight hundred sixty-nine".