879516820 has 48 divisors (see below), whose sum is σ = 2273217408. Its totient is φ = 278352000.

The previous prime is 879516809. The next prime is 879516823. The reversal of 879516820 is 28615978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879516823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239806 + ... + 243445.

It is an arithmetic number, because the mean of its divisors is an integer number (47358696).

Almost surely, 2^879516820 is an apocalyptic number.

It is an amenable number.

879516820 is an abundant number, since it is smaller than the sum of its proper divisors (1393700588).

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

879516820 is a wasteful number, since it uses less digits than its factorization.

879516820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483280 (or 483278 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 879516820 is about 29656.6488329346. The cubic root of 879516820 is about 958.1085515569.

The spelling of 879516820 in words is "eight hundred seventy-nine million, five hundred sixteen thousand, eight hundred twenty".