979515 has 12 divisors (see below), whose sum is σ = 1697904. Its totient is φ = 522384.

The previous prime is 979481. The next prime is 979519. The reversal of 979515 is 515979.

It is a happy number.

It is not a de Polignac number, because 979515 - 2¹⁰ = 978491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979515.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979515.

It is not an unprimeable number, because it can be changed into a prime (979519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10839 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (141492).

2⁹⁷⁹⁵¹⁵ is an apocalyptic number.

979515 is a deficient number, since it is larger than the sum of its proper divisors (718389).

979515 is a wasteful number, since it uses less digits than its factorization.

979515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21778 (or 21775 counting only the distinct ones).

The product of its digits is 14175, while the sum is 36.

The square root of 979515 is about 989.7045013538. The cubic root of 979515 is about 99.3124502542.

It can be divided in two parts, 9 and 79515, that added together give a square (79524 = 282²).

The spelling of 979515 in words is "nine hundred seventy-nine thousand, five hundred fifteen".