979883569 has 4 divisors (see below), whose sum is σ = 1119866944. Its totient is φ = 839900196.

The previous prime is 979883551. The next prime is 979883627. The reversal of 979883569 is 965388979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 979883569 - 2¹⁵ = 979850801 is a prime.

It is a super-2 number, since 2×979883569² = 1920343617592355522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 979883569.

It is not an unprimeable number, because it can be changed into a prime (979883539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69991677 + ... + 69991690.

It is an arithmetic number, because the mean of its divisors is an integer number (279966736).

Almost surely, 2^979883569 is an apocalyptic number.

It is an amenable number.

979883569 is a deficient number, since it is larger than the sum of its proper divisors (139983375).

979883569 is a wasteful number, since it uses less digits than its factorization.

979883569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139983374.

The product of its digits is 29393280, while the sum is 64.

The square root of 979883569 is about 31303.0920038261. The cubic root of 979883569 is about 993.2490502362.

The spelling of 979883569 in words is "nine hundred seventy-nine million, eight hundred eighty-three thousand, five hundred sixty-nine".