680404704 has 48 divisors (see below), whose sum is σ = 2041216128. Its totient is φ = 194401152.

The previous prime is 680404693. The next prime is 680404727. The reversal of 680404704 is 407404086.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×680404704² = 925901122450655232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505582 + ... + 506925.

It is an arithmetic number, because the mean of its divisors is an integer number (42525336).

Almost surely, 2^680404704 is an apocalyptic number.

It is an amenable number.

680404704 is an abundant number, since it is smaller than the sum of its proper divisors (1360811424).

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

680404704 is a wasteful number, since it uses less digits than its factorization.

680404704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012527 (or 1012519 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 680404704 is about 26084.5683115516. The cubic root of 680404704 is about 879.5403522419.

The spelling of 680404704 in words is "six hundred eighty million, four hundred four thousand, seven hundred four".