674684856 has 32 divisors (see below), whose sum is σ = 1874125200. Its totient is φ = 224894880.

The previous prime is 674684849. The next prime is 674684891. The reversal of 674684856 is 658486476.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561555 + ... + 1561986.

Almost surely, 2^674684856 is an apocalyptic number.

It is an amenable number.

674684856 is an abundant number, since it is smaller than the sum of its proper divisors (1199440344).

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

674684856 is a wasteful number, since it uses less digits than its factorization.

674684856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123556 (or 3123546 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 674684856 is about 25974.6964563592. The cubic root of 674684856 is about 877.0687836726.

The spelling of 674684856 in words is "six hundred seventy-four million, six hundred eighty-four thousand, eight hundred fifty-six".