80928431 has 2 divisors, whose sum is σ = 80928432. Its totient is φ = 80928430.

The previous prime is 80928377. The next prime is 80928437. The reversal of 80928431 is 13482908.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80928431 - 2²⁶ = 13819567 is a prime.

It is a super-2 number, since 2×80928431² = 13098821888243522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80928391 and 80928400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80928437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40464215 + 40464216.

It is an arithmetic number, because the mean of its divisors is an integer number (40464216).

Almost surely, 2^80928431 is an apocalyptic number.

80928431 is a deficient number, since it is larger than the sum of its proper divisors (1).

80928431 is an equidigital number, since it uses as much as digits as its factorization.

80928431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80928431 is about 8996.0230657775. The cubic root of 80928431 is about 432.5474009994.

The spelling of 80928431 in words is "eighty million, nine hundred twenty-eight thousand, four hundred thirty-one".