80439031 has 2 divisors, whose sum is σ = 80439032. Its totient is φ = 80439030.

The previous prime is 80439013. The next prime is 80439041. The reversal of 80439031 is 13093408.

Together with previous prime (80439013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80439031 - 2¹⁷ = 80307959 is a prime.

It is a super-2 number, since 2×80439031² = 12940875416437922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80439041) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40219515 + 40219516.

It is an arithmetic number, because the mean of its divisors is an integer number (40219516).

Almost surely, 2^80439031 is an apocalyptic number.

80439031 is a deficient number, since it is larger than the sum of its proper divisors (1).

80439031 is an equidigital number, since it uses as much as digits as its factorization.

80439031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 80439031 is about 8968.7809093544. The cubic root of 80439031 is about 431.6737201798.

The spelling of 80439031 in words is "eighty million, four hundred thirty-nine thousand, thirty-one".