680403404 has 6 divisors (see below), whose sum is σ = 1190705964. Its totient is φ = 340201700.

The previous prime is 680403371. The next prime is 680403413. The reversal of 680403404 is 404304086.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85050422 + ... + 85050429.

It is an arithmetic number, because the mean of its divisors is an integer number (198450994).

Almost surely, 2^680403404 is an apocalyptic number.

It is an amenable number.

680403404 is a deficient number, since it is larger than the sum of its proper divisors (510302560).

680403404 is a wasteful number, since it uses less digits than its factorization.

680403404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170100855 (or 170100853 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 680403404 is about 26084.5433925917. The cubic root of 680403404 is about 879.5397920835.

The spelling of 680403404 in words is "six hundred eighty million, four hundred three thousand, four hundred four".