389279 has 8 divisors (see below), whose sum is σ = 435072. Its totient is φ = 345240.

The previous prime is 389273. The next prime is 389287. The reversal of 389279 is 972983.

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

It is a cyclic number.

It is not a de Polignac number, because 389279 - 2⁸ = 389023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389273) 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, 62 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (54384).

2³⁸⁹²⁷⁹ is an apocalyptic number.

389279 is a deficient number, since it is larger than the sum of its proper divisors (45793).

389279 is a wasteful number, since it uses less digits than its factorization.

389279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877.

The product of its digits is 27216, while the sum is 38.

The square root of 389279 is about 623.9222707998. The cubic root of 389279 is about 73.0163846377.

The spelling of 389279 in words is "three hundred eighty-nine thousand, two hundred seventy-nine".