80663992 has 16 divisors (see below), whose sum is σ = 151371000. Its totient is φ = 40298400.

The previous prime is 80663971. The next prime is 80664007. The reversal of 80663992 is 29936608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8134 + ... + 15082.

Almost surely, 2^80663992 is an apocalyptic number.

It is an amenable number.

80663992 is a deficient number, since it is larger than the sum of its proper divisors (70707008).

80663992 is a wasteful number, since it uses less digits than its factorization.

80663992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406 (or 8402 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 80663992 is about 8981.3134896851. The cubic root of 80663992 is about 432.0757611755.

The spelling of 80663992 in words is "eighty million, six hundred sixty-three thousand, nine hundred ninety-two".