879540822 has 64 divisors (see below), whose sum is σ = 2002104000. Its totient is φ = 286122240.

The previous prime is 879540821. The next prime is 879540833. The reversal of 879540822 is 228045978.

879540822 is a `hidden beast` number, since 87 + 9 + 540 + 8 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879540821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450304 + ... + 452252.

It is an arithmetic number, because the mean of its divisors is an integer number (31282875).

Almost surely, 2^879540822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879540822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001052000).

879540822 is an abundant number, since it is smaller than the sum of its proper divisors (1122563178).

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

879540822 is a wasteful number, since it uses less digits than its factorization.

879540822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 879540822 is about 29657.0534949108. The cubic root of 879540822 is about 958.1172670666.

The spelling of 879540822 in words is "eight hundred seventy-nine million, five hundred forty thousand, eight hundred twenty-two".