80956039 has 2 divisors, whose sum is σ = 80956040. Its totient is φ = 80956038.

The previous prime is 80956027. The next prime is 80956061. The reversal of 80956039 is 93065908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80956039 - 2²³ = 72567431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80955992 and 80956010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80956019) 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, 40478019 + 40478020.

It is an arithmetic number, because the mean of its divisors is an integer number (40478020).

Almost surely, 2^80956039 is an apocalyptic number.

80956039 is a deficient number, since it is larger than the sum of its proper divisors (1).

80956039 is an equidigital number, since it uses as much as digits as its factorization.

80956039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 80956039 is about 8997.5573907589. The cubic root of 80956039 is about 432.5965819478.

The spelling of 80956039 in words is "eighty million, nine hundred fifty-six thousand, thirty-nine".