979799018 has 16 divisors (see below), whose sum is σ = 1610197056. Its totient is φ = 443449440.

The previous prime is 979798999. The next prime is 979799021. The reversal of 979799018 is 810997979.

It is a happy number.

It is a super-2 number, since 2×979799018² = 1920012231347528648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90446 + ... + 100697.

It is an arithmetic number, because the mean of its divisors is an integer number (100637316).

Almost surely, 2^979799018 is an apocalyptic number.

979799018 is a deficient number, since it is larger than the sum of its proper divisors (630398038).

979799018 is a wasteful number, since it uses less digits than its factorization.

979799018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191389.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The square root of 979799018 is about 31301.7414531524. The cubic root of 979799018 is about 993.2204813263.

It can be divided in two parts, 979 and 799018, that added together give a palindrome (799997).

The spelling of 979799018 in words is "nine hundred seventy-nine million, seven hundred ninety-nine thousand, eighteen".