674660369 has 4 divisors (see below), whose sum is σ = 677096244. Its totient is φ = 672224496.

The previous prime is 674660333. The next prime is 674660387. The reversal of 674660369 is 963066476.

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 238393600 + 436266769 = 15440^2 + 20887^2 .

It is a cyclic number.

It is not a de Polignac number, because 674660369 - 2¹² = 674656273 is a prime.

It is a super-2 number, since 2×674660369² = 910333226998432322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674660309) 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, 1217522 + ... + 1218075.

It is an arithmetic number, because the mean of its divisors is an integer number (169274061).

Almost surely, 2^674660369 is an apocalyptic number.

It is an amenable number.

674660369 is a deficient number, since it is larger than the sum of its proper divisors (2435875).

674660369 is a wasteful number, since it uses less digits than its factorization.

674660369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435874.

The product of its (nonzero) digits is 979776, while the sum is 47.

The square root of 674660369 is about 25974.2250894998. The cubic root of 674660369 is about 877.0581727713.

The spelling of 674660369 in words is "six hundred seventy-four million, six hundred sixty thousand, three hundred sixty-nine".