80791031 has 2 divisors, whose sum is σ = 80791032. Its totient is φ = 80791030.

The previous prime is 80791003. The next prime is 80791043. The reversal of 80791031 is 13019708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80791031 - 2⁶ = 80790967 is a prime.

It is a super-2 number, since 2×80791031² = 13054381380085922, 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 = 80790985 and 80791003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80791331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40395515 + 40395516.

It is an arithmetic number, because the mean of its divisors is an integer number (40395516).

Almost surely, 2^80791031 is an apocalyptic number.

80791031 is a deficient number, since it is larger than the sum of its proper divisors (1).

80791031 is an equidigital number, since it uses as much as digits as its factorization.

80791031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 80791031 is about 8988.3831137752. The cubic root of 80791031 is about 432.3024698571.

The spelling of 80791031 in words is "eighty million, seven hundred ninety-one thousand, thirty-one".