674665136 has 20 divisors (see below), whose sum is σ = 1309527792. Its totient is φ = 336722496.

The previous prime is 674665133. The next prime is 674665139. The reversal of 674665136 is 631566476.

It is an interprime number because it is at equal distance from previous prime (674665133) and next prime (674665139).

It is not an unprimeable number, because it can be changed into a prime (674665133) 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, 28940 + ... + 46763.

Almost surely, 2^674665136 is an apocalyptic number.

It is an amenable number.

674665136 is a deficient number, since it is larger than the sum of its proper divisors (634862656).

674665136 is a wasteful number, since it uses less digits than its factorization.

674665136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76268 (or 76262 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 674665136 is about 25974.3168533842. The cubic root of 674665136 is about 877.0602384657.

The spelling of 674665136 in words is "six hundred seventy-four million, six hundred sixty-five thousand, one hundred thirty-six".