879540 has 48 divisors (see below), whose sum is σ = 2503872. Its totient is φ = 230656.

The previous prime is 879539. The next prime is 879553. The reversal of 879540 is 45978.

It is a super-2 number, since 2×879540² = 1547181223200, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 879540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (52164).

2⁸⁷⁹⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251936).

879540 is an abundant number, since it is smaller than the sum of its proper divisors (1624332).

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

879540 is a wasteful number, since it uses less digits than its factorization.

879540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 879540 is about 937.8379390918. The cubic root of 879540 is about 95.8116968588.

The spelling of 879540 in words is "eight hundred seventy-nine thousand, five hundred forty".