979018994 has 4 divisors (see below), whose sum is σ = 1468528494. Its totient is φ = 489509496.

The previous prime is 979018979. The next prime is 979019011. The reversal of 979018994 is 499810979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499810979 = 19 ⋅26305841.

It can be written as a sum of positive squares in only one way, i.e., 727003369 + 252015625 = 26963^2 + 15875^2 .

It is a super-2 number, since 2×979018994² = 1916956381225544072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244754747 + ... + 244754750.

Almost surely, 2^979018994 is an apocalyptic number.

979018994 is a deficient number, since it is larger than the sum of its proper divisors (489509500).

979018994 is a wasteful number, since it uses less digits than its factorization.

979018994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489509499.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 979018994 is about 31289.2792182882. The cubic root of 979018994 is about 992.9568417159.

The spelling of 979018994 in words is "nine hundred seventy-nine million, eighteen thousand, nine hundred ninety-four".