80631427 has 2 divisors, whose sum is σ = 80631428. Its totient is φ = 80631426.

The previous prime is 80631413. The next prime is 80631479. The reversal of 80631427 is 72413608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80631427 - 2¹⁵ = 80598659 is a prime.

It is not a weakly prime, because it can be changed into another prime (80631127) 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, 40315713 + 40315714.

It is an arithmetic number, because the mean of its divisors is an integer number (40315714).

Almost surely, 2^80631427 is an apocalyptic number.

80631427 is a deficient number, since it is larger than the sum of its proper divisors (1).

80631427 is an equidigital number, since it uses as much as digits as its factorization.

80631427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 80631427 is about 8979.5003758561. The cubic root of 80631427 is about 432.0176086644.

The spelling of 80631427 in words is "eighty million, six hundred thirty-one thousand, four hundred twenty-seven".