680889696 has 24 divisors (see below), whose sum is σ = 1787335704. Its totient is φ = 226963200.

The previous prime is 680889683. The next prime is 680889697. The reversal of 680889696 is 696988086.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×680889696² = 927221556237944832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680889697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546205 + ... + 3546396.

It is an arithmetic number, because the mean of its divisors is an integer number (74472321).

Almost surely, 2^680889696 is an apocalyptic number.

It is an amenable number.

680889696 is an abundant number, since it is smaller than the sum of its proper divisors (1106446008).

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

680889696 is a wasteful number, since it uses less digits than its factorization.

680889696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092614 (or 7092606 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 60.

The square root of 680889696 is about 26093.8631865809. The cubic root of 680889696 is about 879.7492811921.

The spelling of 680889696 in words is "six hundred eighty million, eight hundred eighty-nine thousand, six hundred ninety-six".