80845995 has 16 divisors (see below), whose sum is σ = 130344192. Its totient is φ = 42787680.

The previous prime is 80845991. The next prime is 80846021. The reversal of 80845995 is 59954808.

It is a happy number.

It is not a de Polignac number, because 80845995 - 2² = 80845991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80845991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18607 + ... + 22536.

It is an arithmetic number, because the mean of its divisors is an integer number (8146512).

Almost surely, 2^80845995 is an apocalyptic number.

80845995 is a deficient number, since it is larger than the sum of its proper divisors (49498197).

80845995 is a wasteful number, since it uses less digits than its factorization.

80845995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41282.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 80845995 is about 8991.4400960024. The cubic root of 80845995 is about 432.4004827442.

The spelling of 80845995 in words is "eighty million, eight hundred forty-five thousand, nine hundred ninety-five".