979791720 has 64 divisors (see below), whose sum is σ = 3067182720. Its totient is φ = 249917184.

The previous prime is 979791691. The next prime is 979791727. The reversal of 979791720 is 27197979.

It is not an unprimeable number, because it can be changed into a prime (979791727) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 174739 + ... + 180258.

It is an arithmetic number, because the mean of its divisors is an integer number (47924730).

Almost surely, 2^979791720 is an apocalyptic number.

It is an amenable number.

979791720 is an abundant number, since it is smaller than the sum of its proper divisors (2087391000).

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

979791720 is a wasteful number, since it uses less digits than its factorization.

979791720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355034 (or 355030 counting only the distinct ones).

The product of its (nonzero) digits is 500094, while the sum is 51.

The square root of 979791720 is about 31301.6248779516. The cubic root of 979791720 is about 993.2180153305.

It can be divided in two parts, 97979 and 1720, that added together give a palindrome (99699).

The spelling of 979791720 in words is "nine hundred seventy-nine million, seven hundred ninety-one thousand, seven hundred twenty".