680007992 has 16 divisors (see below), whose sum is σ = 1295917800. Its totient is φ = 334429920.

The previous prime is 680007989. The next prime is 680007997. The reversal of 680007992 is 299700086.

680007992 is a modest number, since divided by 7992 gives 680 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680007997) 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, 696242 + ... + 697217.

Almost surely, 2^680007992 is an apocalyptic number.

It is an amenable number.

680007992 is a deficient number, since it is larger than the sum of its proper divisors (615909808).

680007992 is a wasteful number, since it uses less digits than its factorization.

680007992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393526 (or 1393522 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 680007992 is about 26076.9628599651. The cubic root of 680007992 is about 879.3693794635.

The spelling of 680007992 in words is "six hundred eighty million, seven thousand, nine hundred ninety-two".