9888879 has 64 divisors (see below), whose sum is σ = 18385920. Its totient is φ = 4561920.

The previous prime is 9888871. The next prime is 9888881. The reversal of 9888879 is 9788889.

It is not a de Polignac number, because 9888879 - 2³ = 9888871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9888871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111067 + ... + 111155.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^9888879 is an apocalyptic number.

9888879 is a deficient number, since it is larger than the sum of its proper divisors (8497041).

9888879 is a wasteful number, since it uses less digits than its factorization.

9888879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its digits is 2322432, while the sum is 57.

The square root of 9888879 is about 3144.6588050216. The cubic root of 9888879 is about 214.6424849738.

It can be divided in two parts, 9 and 888879, that added together give a palindrome (888888).

The spelling of 9888879 in words is "nine million, eight hundred eighty-eight thousand, eight hundred seventy-nine".