879947520 has 72 divisors (see below), whose sum is σ = 2810344656. Its totient is φ = 234651648.

The previous prime is 879947483. The next prime is 879947521. The reversal of 879947520 is 25749978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879947521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110737 + ... + 118416.

Almost surely, 2^879947520 is an apocalyptic number.

879947520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

879947520 is an abundant number, since it is smaller than the sum of its proper divisors (1930397136).

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

879947520 is a wasteful number, since it uses less digits than its factorization.

879947520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229177 (or 229163 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 879947520 is about 29663.9093849749. The cubic root of 879947520 is about 958.2649215101.

The spelling of 879947520 in words is "eight hundred seventy-nine million, nine hundred forty-seven thousand, five hundred twenty".