979697560 has 32 divisors (see below), whose sum is σ = 2206100160. Its totient is φ = 391562496.

The previous prime is 979697533. The next prime is 979697561. The reversal of 979697560 is 65796979.

It is a junction number, because it is equal to n+sod(n) for n = 979697495 and 979697504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979697561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43852 + ... + 62308.

It is an arithmetic number, because the mean of its divisors is an integer number (68940630).

Almost surely, 2^979697560 is an apocalyptic number.

It is an amenable number.

979697560 is an abundant number, since it is smaller than the sum of its proper divisors (1226402600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979697560 is a wasteful number, since it uses less digits than its factorization.

979697560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19795 (or 19791 counting only the distinct ones).

The product of its (nonzero) digits is 6429780, while the sum is 58.

The square root of 979697560 is about 31300.1207665402. The cubic root of 979697560 is about 993.1861975463.

The spelling of 979697560 in words is "nine hundred seventy-nine million, six hundred ninety-seven thousand, five hundred sixty".