979575 has 24 divisors (see below), whose sum is σ = 1668048. Its totient is φ = 506880.

The previous prime is 979567. The next prime is 979651. The reversal of 979575 is 575979.

It is a happy number.

It is not a de Polignac number, because 979575 - 2³ = 979567 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979575.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2599 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (69502).

2⁹⁷⁹⁵⁷⁵ is an apocalyptic number.

979575 is a deficient number, since it is larger than the sum of its proper divisors (688473).

979575 is a wasteful number, since it uses less digits than its factorization.

979575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 398 counting only the distinct ones).

The product of its digits is 99225, while the sum is 42.

The square root of 979575 is about 989.7348129676. The cubic root of 979575 is about 99.3144780010.

It can be divided in two parts, 9795 and 75, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 979575 in words is "nine hundred seventy-nine thousand, five hundred seventy-five".