80973880 has 32 divisors (see below), whose sum is σ = 196207200. Its totient is φ = 29897856.

The previous prime is 80973853. The next prime is 80973881. The reversal of 80973880 is 8837908.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80973881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77340 + ... + 78379.

It is an arithmetic number, because the mean of its divisors is an integer number (6131475).

Almost surely, 2^80973880 is an apocalyptic number.

It is an amenable number.

80973880 is an abundant number, since it is smaller than the sum of its proper divisors (115233320).

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

80973880 is a wasteful number, since it uses less digits than its factorization.

80973880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155743 (or 155739 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80973880 is about 8998.5487718854. The cubic root of 80973880 is about 432.6283579949.

The spelling of 80973880 in words is "eighty million, nine hundred seventy-three thousand, eight hundred eighty".