879891280 has 40 divisors (see below), whose sum is σ = 2054723400. Its totient is φ = 350412288.

The previous prime is 879891269. The next prime is 879891301. The reversal of 879891280 is 82198978.

It can be written as a sum of positive squares in 4 ways, for example, as 261274896 + 618616384 = 16164^2 + 24872^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 5695 + ... + 42334.

It is an arithmetic number, because the mean of its divisors is an integer number (51368085).

Almost surely, 2^879891280 is an apocalyptic number.

879891280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

879891280 is an abundant number, since it is smaller than the sum of its proper divisors (1174832120).

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

879891280 is a wasteful number, since it uses less digits than its factorization.

879891280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48271 (or 48265 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 52.

The square root of 879891280 is about 29662.9614165545. The cubic root of 879891280 is about 958.2445059110.

The spelling of 879891280 in words is "eight hundred seventy-nine million, eight hundred ninety-one thousand, two hundred eighty".