979830720 has 336 divisors, whose sum is σ = 3718791648. Its totient is φ = 234823680.

The previous prime is 979830689. The next prime is 979830721. The reversal of 979830720 is 27038979.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979830721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4973662 + ... + 4973858.

Almost surely, 2^979830720 is an apocalyptic number.

979830720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979830720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1859395824).

979830720 is an abundant number, since it is smaller than the sum of its proper divisors (2738960928).

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

979830720 is a wasteful number, since it uses less digits than its factorization.

979830720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 979830720 is about 31302.2478426071. The cubic root of 979830720 is about 993.2311932974.

The spelling of 979830720 in words is "nine hundred seventy-nine million, eight hundred thirty thousand, seven hundred twenty".