80508817 has 16 divisors (see below), whose sum is σ = 84015360. Its totient is φ = 77112000.

The previous prime is 80508803. The next prime is 80508839. The reversal of 80508817 is 71880508.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80508817 is a prime.

It is a super-2 number, since 2×80508817² = 12963339229478978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80508847) 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, 738559 + ... + 738667.

It is an arithmetic number, because the mean of its divisors is an integer number (5250960).

Almost surely, 2^80508817 is an apocalyptic number.

It is an amenable number.

80508817 is a deficient number, since it is larger than the sum of its proper divisors (3506543).

80508817 is a wasteful number, since it uses less digits than its factorization.

80508817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 80508817 is about 8972.6705612097. The cubic root of 80508817 is about 431.7985189428.

The spelling of 80508817 in words is "eighty million, five hundred eight thousand, eight hundred seventeen".