979520390 has 16 divisors (see below), whose sum is σ = 1774815840. Its totient is φ = 389212800.

The previous prime is 979520359. The next prime is 979520411. The reversal of 979520390 is 93025979.

It is a congruent number.

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, 322835 + ... + 325854.

It is an arithmetic number, because the mean of its divisors is an integer number (110925990).

Almost surely, 2^979520390 is an apocalyptic number.

979520390 is a deficient number, since it is larger than the sum of its proper divisors (795295450).

979520390 is a wasteful number, since it uses less digits than its factorization.

979520390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648847.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 979520390 is about 31297.2904578016. The cubic root of 979520390 is about 993.1263241684.

The spelling of 979520390 in words is "nine hundred seventy-nine million, five hundred twenty thousand, three hundred ninety".