979777942 has 16 divisors (see below), whose sum is σ = 1726602192. Its totient is φ = 411095520.

The previous prime is 979777927. The next prime is 979777969. The reversal of 979777942 is 249777979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712613 + ... + 1713184.

It is an arithmetic number, because the mean of its divisors is an integer number (107912637).

Almost surely, 2^979777942 is an apocalyptic number.

979777942 is a deficient number, since it is larger than the sum of its proper divisors (746824250).

979777942 is a wasteful number, since it uses less digits than its factorization.

979777942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425823.

The product of its digits is 14002632, while the sum is 61.

The square root of 979777942 is about 31301.4047927565. The cubic root of 979777942 is about 993.2133597077.

The spelling of 979777942 in words is "nine hundred seventy-nine million, seven hundred seventy-seven thousand, nine hundred forty-two".