800000015 has 4 divisors (see below), whose sum is σ = 960000024. Its totient is φ = 640000008.

The previous prime is 800000011. The next prime is 800000027. The reversal of 800000015 is 510000008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 800000015 - 2² = 800000011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800000011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79999997 + ... + 80000006.

It is an arithmetic number, because the mean of its divisors is an integer number (240000006).

Almost surely, 2^800000015 is an apocalyptic number.

800000015 is a deficient number, since it is larger than the sum of its proper divisors (160000009).

800000015 is a wasteful number, since it uses less digits than its factorization.

800000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160000008.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 800000015 is about 28284.2715126269. The cubic root of 800000015 is about 928.3177725245.

The spelling of 800000015 in words is "eight hundred million, fifteen", and thus it is an aban number.