674507688 has 32 divisors (see below), whose sum is σ = 1707619200. Its totient is φ = 221989248.

The previous prime is 674507681. The next prime is 674507699. The reversal of 674507688 is 886705476.

It is a super-2 number, since 2×674507688² = 909921242342210688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 674507688.

It is not an unprimeable number, because it can be changed into a prime (674507681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175981 + ... + 179772.

It is an arithmetic number, because the mean of its divisors is an integer number (53363100).

Almost surely, 2^674507688 is an apocalyptic number.

It is an amenable number.

674507688 is an abundant number, since it is smaller than the sum of its proper divisors (1033111512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674507688 is a wasteful number, since it uses less digits than its factorization.

674507688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355841 (or 355837 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The square root of 674507688 is about 25971.2858364772. The cubic root of 674507688 is about 876.9920060362.

The spelling of 674507688 in words is "six hundred seventy-four million, five hundred seven thousand, six hundred eighty-eight".