979559889 has 16 divisors (see below), whose sum is σ = 1628359680. Its totient is φ = 508862160.

The previous prime is 979559887. The next prime is 979559897. The reversal of 979559889 is 988955979.

It is not a de Polignac number, because 979559889 - 2¹ = 979559887 is a prime.

It is a super-2 number, since 2×979559889² = 1919075152275384642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (979559881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120029 + ... + 2120490.

It is an arithmetic number, because the mean of its divisors is an integer number (101772480).

Almost surely, 2^979559889 is an apocalyptic number.

It is an amenable number.

979559889 is a deficient number, since it is larger than the sum of its proper divisors (648799791).

979559889 is a wasteful number, since it uses less digits than its factorization.

979559889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240540.

The product of its digits is 73483200, while the sum is 69.

The square root of 979559889 is about 31297.9214805073. The cubic root of 979559889 is about 993.1396732080.

The spelling of 979559889 in words is "nine hundred seventy-nine million, five hundred fifty-nine thousand, eight hundred eighty-nine".