80865171 has 12 divisors (see below), whose sum is σ = 121884048. Its totient is φ = 51566064.

The previous prime is 80865149. The next prime is 80865193. The reversal of 80865171 is 17156808.

It is an interprime number because it is at equal distance from previous prime (80865149) and next prime (80865193).

It is not a de Polignac number, because 80865171 - 2⁵ = 80865139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80865101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195120 + ... + 195533.

It is an arithmetic number, because the mean of its divisors is an integer number (10157004).

Almost surely, 2^80865171 is an apocalyptic number.

80865171 is a deficient number, since it is larger than the sum of its proper divisors (41018877).

80865171 is a wasteful number, since it uses less digits than its factorization.

80865171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390682 (or 390679 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 80865171 is about 8992.5063803147. The cubic root of 80865171 is about 432.4346673119.

The spelling of 80865171 in words is "eighty million, eight hundred sixty-five thousand, one hundred seventy-one".