979389 has 6 divisors (see below), whose sum is σ = 1414686. Its totient is φ = 652920.

The previous prime is 979379. The next prime is 979403. The reversal of 979389 is 983979.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 870489 + 108900 = 933^2 + 330^2 .

It is not a de Polignac number, because 979389 - 2⁴ = 979373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54402 + ... + 54419.

It is an arithmetic number, because the mean of its divisors is an integer number (235781).

2⁹⁷⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

979389 is a deficient number, since it is larger than the sum of its proper divisors (435297).

979389 is a wasteful number, since it uses less digits than its factorization.

979389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108827 (or 108824 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 979389 is about 989.6408439429. The cubic root of 979389 is about 99.3081917163.

The spelling of 979389 in words is "nine hundred seventy-nine thousand, three hundred eighty-nine".