80972394 has 32 divisors (see below), whose sum is σ = 173067840. Its totient is φ = 25166592.

The previous prime is 80972383. The next prime is 80972431. The reversal of 80972394 is 49327908.

80972394 = T₁₁₆₄ + T₁₁₆₅ + ... + T₁₂₇₂.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7477 + ... + 14759.

It is an arithmetic number, because the mean of its divisors is an integer number (5408370).

Almost surely, 2^80972394 is an apocalyptic number.

80972394 is an abundant number, since it is smaller than the sum of its proper divisors (92095446).

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

80972394 is a wasteful number, since it uses less digits than its factorization.

80972394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 80972394 is about 8998.4662026370. The cubic root of 80972394 is about 432.6257115050.

The spelling of 80972394 in words is "eighty million, nine hundred seventy-two thousand, three hundred ninety-four".