800080065 has 16 divisors (see below), whose sum is σ = 1422364800. Its totient is φ = 426709296.

The previous prime is 800080051. The next prime is 800080117. The reversal of 800080065 is 560080008.

It is not a de Polignac number, because 800080065 - 2⁸ = 800079809 is a prime.

It is a super-2 number, since 2×800080065² = 1280256220820808450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963125 + ... + 2963394.

It is an arithmetic number, because the mean of its divisors is an integer number (88897800).

Almost surely, 2^800080065 is an apocalyptic number.

It is an amenable number.

800080065 is a deficient number, since it is larger than the sum of its proper divisors (622284735).

800080065 is a wasteful number, since it uses less digits than its factorization.

800080065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926533 (or 5926527 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 800080065 is about 28285.6865746618. The cubic root of 800080065 is about 928.3487347570.

The spelling of 800080065 in words is "eight hundred million, eighty thousand, sixty-five".