80972532 has 36 divisors (see below), whose sum is σ = 205951200. Its totient is φ = 26823312.

The previous prime is 80972531. The next prime is 80972543. The reversal of 80972532 is 23527908.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80972531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032 + ... + 12767.

Almost surely, 2^80972532 is an apocalyptic number.

It is an amenable number.

80972532 is an abundant number, since it is smaller than the sum of its proper divisors (124978668).

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

80972532 is a wasteful number, since it uses less digits than its factorization.

80972532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13972 (or 13967 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 80972532 is about 8998.4738706072. The cubic root of 80972532 is about 432.6259572773.

The spelling of 80972532 in words is "eighty million, nine hundred seventy-two thousand, five hundred thirty-two".