979427520 has 84 divisors (see below), whose sum is σ = 3368832480. Its totient is φ = 261179904.

The previous prime is 979427509. The next prime is 979427531. The reversal of 979427520 is 25724979.

It is an interprime number because it is at equal distance from previous prime (979427509) and next prime (979427531).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167160 + ... + 172919.

Almost surely, 2^979427520 is an apocalyptic number.

979427520 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

979427520 is an abundant number, since it is smaller than the sum of its proper divisors (2389404960).

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

979427520 is a wasteful number, since it uses less digits than its factorization.

979427520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340102 (or 340089 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 979427520 is about 31295.8067478696. The cubic root of 979427520 is about 993.0949365091.

The spelling of 979427520 in words is "nine hundred seventy-nine million, four hundred twenty-seven thousand, five hundred twenty".