800979 has 4 divisors (see below), whose sum is σ = 1067976. Its totient is φ = 533984.

The previous prime is 800977. The next prime is 800993. The reversal of 800979 is 979008.

800979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 800979 - 2¹ = 800977 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (800971) 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, 133494 + ... + 133499.

It is an arithmetic number, because the mean of its divisors is an integer number (266994).

2⁸⁰⁰⁹⁷⁹ is an apocalyptic number.

800979 is a deficient number, since it is larger than the sum of its proper divisors (266997).

800979 is a wasteful number, since it uses less digits than its factorization.

800979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266996.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 800979 is about 894.9743013070. The cubic root of 800979 is about 92.8696288648.

The spelling of 800979 in words is "eight hundred thousand, nine hundred seventy-nine".