674718949 has 4 divisors (see below), whose sum is σ = 678446860. Its totient is φ = 670991040.

The previous prime is 674718931. The next prime is 674718953. The reversal of 674718949 is 949817476.

674718949 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 330876100 + 343842849 = 18190^2 + 18543^2 .

It is a cyclic number.

It is not a de Polignac number, because 674718949 - 2⁵ = 674718917 is a prime.

It is a super-4 number, since 4×674718949⁴ (a number of 36 digits) contains 4444 as substring.

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 674718949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674718449) 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, 1863684 + ... + 1864045.

It is an arithmetic number, because the mean of its divisors is an integer number (169611715).

Almost surely, 2^674718949 is an apocalyptic number.

It is an amenable number.

674718949 is a deficient number, since it is larger than the sum of its proper divisors (3727911).

674718949 is a wasteful number, since it uses less digits than its factorization.

674718949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727910.

The product of its digits is 3048192, while the sum is 55.

The square root of 674718949 is about 25975.3527213780. The cubic root of 674718949 is about 877.0835566944.

The spelling of 674718949 in words is "six hundred seventy-four million, seven hundred eighteen thousand, nine hundred forty-nine".