879958398 has 64 divisors (see below), whose sum is σ = 1946343168. Its totient is φ = 263013120.

The previous prime is 879958361. The next prime is 879958411. The reversal of 879958398 is 893859978.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2775736 + ... + 2776052.

It is an arithmetic number, because the mean of its divisors is an integer number (30411612).

Almost surely, 2^879958398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879958398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973171584).

879958398 is an abundant number, since it is smaller than the sum of its proper divisors (1066384770).

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

879958398 is a wasteful number, since it uses less digits than its factorization.

879958398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its digits is 39191040, while the sum is 66.

The square root of 879958398 is about 29664.0927385282. The cubic root of 879958398 is about 958.2688702163.

The spelling of 879958398 in words is "eight hundred seventy-nine million, nine hundred fifty-eight thousand, three hundred ninety-eight".