979311855 has 48 divisors (see below), whose sum is σ = 1659565152. Its totient is φ = 492825600.

The previous prime is 979311847. The next prime is 979311923. The reversal of 979311855 is 558113979.

It is not a de Polignac number, because 979311855 - 2³ = 979311847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 590187 + ... + 591843.

It is an arithmetic number, because the mean of its divisors is an integer number (34574274).

Almost surely, 2^979311855 is an apocalyptic number.

979311855 is a deficient number, since it is larger than the sum of its proper divisors (680253297).

979311855 is a wasteful number, since it uses less digits than its factorization.

979311855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1737 counting only the distinct ones).

The product of its digits is 340200, while the sum is 48.

The square root of 979311855 is about 31293.9587620358. The cubic root of 979311855 is about 993.0558419546.

The spelling of 979311855 in words is "nine hundred seventy-nine million, three hundred eleven thousand, eight hundred fifty-five".