80457931 has 2 divisors, whose sum is σ = 80457932. Its totient is φ = 80457930.

The previous prime is 80457917. The next prime is 80457953. The reversal of 80457931 is 13975408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80457931 - 2²⁵ = 46903499 is a prime.

It is a super-2 number, since 2×80457931² = 12946957321601522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80457131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40228965 + 40228966.

It is an arithmetic number, because the mean of its divisors is an integer number (40228966).

Almost surely, 2^80457931 is an apocalyptic number.

80457931 is a deficient number, since it is larger than the sum of its proper divisors (1).

80457931 is an equidigital number, since it uses as much as digits as its factorization.

80457931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 80457931 is about 8969.8345023752. The cubic root of 80457931 is about 431.7075262990.

The spelling of 80457931 in words is "eighty million, four hundred fifty-seven thousand, nine hundred thirty-one".