979963820 has 24 divisors (see below), whose sum is σ = 2245008528. Its totient is φ = 356350400.

The previous prime is 979963769. The next prime is 979963843. The reversal of 979963820 is 28369979.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226971 + ... + 2227410.

It is an arithmetic number, because the mean of its divisors is an integer number (93542022).

Almost surely, 2^979963820 is an apocalyptic number.

It is an amenable number.

979963820 is an abundant number, since it is smaller than the sum of its proper divisors (1265044708).

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

979963820 is a wasteful number, since it uses less digits than its factorization.

979963820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454401 (or 4454399 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 979963820 is about 31304.3738158105. The cubic root of 979963820 is about 993.2761647003.

The spelling of 979963820 in words is "nine hundred seventy-nine million, nine hundred sixty-three thousand, eight hundred twenty".