80946731 has 2 divisors, whose sum is σ = 80946732. Its totient is φ = 80946730.

The previous prime is 80946703. The next prime is 80946757. The reversal of 80946731 is 13764908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80946731 - 2¹⁰ = 80945707 is a prime.

It is a super-2 number, since 2×80946731² = 13104746519172722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80946781) by changing a digit.

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 as a sum of consecutive naturals, namely, 40473365 + 40473366.

It is an arithmetic number, because the mean of its divisors is an integer number (40473366).

Almost surely, 2^80946731 is an apocalyptic number.

80946731 is a deficient number, since it is larger than the sum of its proper divisors (1).

80946731 is an equidigital number, since it uses as much as digits as its factorization.

80946731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 80946731 is about 8997.0401243965. The cubic root of 80946731 is about 432.5800019069.

The spelling of 80946731 in words is "eighty million, nine hundred forty-six thousand, seven hundred thirty-one".