979005990 has 32 divisors (see below), whose sum is σ = 2365394400. Its totient is φ = 259314944.

The previous prime is 979005961. The next prime is 979005991. The reversal of 979005990 is 99500979.

979005990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979005991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105039 + ... + 113978.

It is an arithmetic number, because the mean of its divisors is an integer number (73918575).

Almost surely, 2^979005990 is an apocalyptic number.

979005990 is an abundant number, since it is smaller than the sum of its proper divisors (1386388410).

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

979005990 is a wasteful number, since it uses less digits than its factorization.

979005990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219176.

The product of its (nonzero) digits is 229635, while the sum is 48.

The square root of 979005990 is about 31289.0714147927. The cubic root of 979005990 is about 992.9524453191.

The spelling of 979005990 in words is "nine hundred seventy-nine million, five thousand, nine hundred ninety".