388979 has 4 divisors (see below), whose sum is σ = 390240. Its totient is φ = 387720.

The previous prime is 388963. The next prime is 388991. The reversal of 388979 is 979883.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 388979 - 2⁴ = 388963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388879) 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, 182 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (97560).

2³⁸⁸⁹⁷⁹ is an apocalyptic number.

388979 is a deficient number, since it is larger than the sum of its proper divisors (1261).

388979 is an equidigital number, since it uses as much as digits as its factorization.

388979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its digits is 108864, while the sum is 44.

The square root of 388979 is about 623.6818098999. The cubic root of 388979 is about 72.9976229913.

The spelling of 388979 in words is "three hundred eighty-eight thousand, nine hundred seventy-nine".