684980574 has 32 divisors (see below), whose sum is σ = 1391160960. Its totient is φ = 224812512.

The previous prime is 684980567. The next prime is 684980587. The reversal of 684980574 is 475089486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155697 + ... + 160035.

It is an arithmetic number, because the mean of its divisors is an integer number (43473780).

Almost surely, 2^684980574 is an apocalyptic number.

684980574 is an abundant number, since it is smaller than the sum of its proper divisors (706180386).

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

684980574 is a wasteful number, since it uses less digits than its factorization.

684980574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 684980574 is about 26172.1335393200. The cubic root of 684980574 is about 881.5076488635.

The spelling of 684980574 in words is "six hundred eighty-four million, nine hundred eighty thousand, five hundred seventy-four".