80972663 has 8 divisors (see below), whose sum is σ = 83144880. Its totient is φ = 78809920.

The previous prime is 80972629. The next prime is 80972677. The reversal of 80972663 is 36627908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80972663 - 2²⁶ = 13863799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80972663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80972063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17033 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (10393110).

Almost surely, 2^80972663 is an apocalyptic number.

80972663 is a deficient number, since it is larger than the sum of its proper divisors (2172217).

80972663 is a wasteful number, since it uses less digits than its factorization.

80972663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 80972663 is about 8998.4811496163. The cubic root of 80972663 is about 432.6261905826.

The spelling of 80972663 in words is "eighty million, nine hundred seventy-two thousand, six hundred sixty-three".