80851039 has 2 divisors, whose sum is σ = 80851040. Its totient is φ = 80851038.

The previous prime is 80851021. The next prime is 80851091. The reversal of 80851039 is 93015808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80851039 - 2⁹ = 80850527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80850995 and 80851013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80852039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40425519 + 40425520.

It is an arithmetic number, because the mean of its divisors is an integer number (40425520).

Almost surely, 2^80851039 is an apocalyptic number.

80851039 is a deficient number, since it is larger than the sum of its proper divisors (1).

80851039 is an equidigital number, since it uses as much as digits as its factorization.

80851039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 80851039 is about 8991.7205806230. The cubic root of 80851039 is about 432.4094750786.

The spelling of 80851039 in words is "eighty million, eight hundred fifty-one thousand, thirty-nine".