808979 has 8 divisors (see below), whose sum is σ = 894240. Its totient is φ = 727936.

The previous prime is 808961. The next prime is 808981. The reversal of 808979 is 979808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (111780).

2⁸⁰⁸⁹⁷⁹ is an apocalyptic number.

808979 is a deficient number, since it is larger than the sum of its proper divisors (85261).

808979 is a wasteful number, since it uses less digits than its factorization.

808979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 808979 is about 899.4325989200. The cubic root of 808979 is about 93.1777922368.

The spelling of 808979 in words is "eight hundred eight thousand, nine hundred seventy-nine".