908979 has 16 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 557280.

The previous prime is 908959. The next prime is 908993. The reversal of 908979 is 979809.

It is a happy number.

It is not a de Polignac number, because 908979 - 2⁷ = 908851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 908979.

It is not an unprimeable number, because it can be changed into a prime (908909) 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, 1894 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2⁹⁰⁸⁹⁷⁹ is an apocalyptic number.

908979 is a deficient number, since it is larger than the sum of its proper divisors (404301).

908979 is a wasteful number, since it uses less digits than its factorization.

908979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 908979 is about 953.4039018171. The cubic root of 908979 is about 96.8689554328.

The spelling of 908979 in words is "nine hundred eight thousand, nine hundred seventy-nine".