879878790 has 144 divisors (see below), whose sum is σ = 2801513520. Its totient is φ = 190512000.

The previous prime is 879878761. The next prime is 879878803. The reversal of 879878790 is 97878978.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 78540 + ... + 89040.

It is an arithmetic number, because the mean of its divisors is an integer number (19454955).

Almost surely, 2^879878790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879878790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400756760).

879878790 is an abundant number, since it is smaller than the sum of its proper divisors (1921634730).

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

879878790 is a wasteful number, since it uses less digits than its factorization.

879878790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 63.

The square root of 879878790 is about 29662.7508838948. The cubic root of 879878790 is about 958.2399718165.

The spelling of 879878790 in words is "eight hundred seventy-nine million, eight hundred seventy-eight thousand, seven hundred ninety".