308979 has 12 divisors (see below), whose sum is σ = 487032. Its totient is φ = 187200.

The previous prime is 308951. The next prime is 308989. The reversal of 308979 is 979803.

It is not a de Polignac number, because 308979 - 2⁷ = 308851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1462 + ... + 1659.

It is an arithmetic number, because the mean of its divisors is an integer number (40586).

2³⁰⁸⁹⁷⁹ is an apocalyptic number.

308979 is a deficient number, since it is larger than the sum of its proper divisors (178053).

308979 is a wasteful number, since it uses less digits than its factorization.

308979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 308979 is about 555.8587950190. The cubic root of 308979 is about 67.6046114520.

It can be divided in two parts, 30 and 8979, that added together give a palindrome (9009).

The spelling of 308979 in words is "three hundred eight thousand, nine hundred seventy-nine".