879148889 has 4 divisors (see below), whose sum is σ = 899594256. Its totient is φ = 858703524.

The previous prime is 879148883. The next prime is 879148901. The reversal of 879148889 is 988841978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 879148889 - 2⁴ = 879148873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (879148883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10222619 + ... + 10222704.

It is an arithmetic number, because the mean of its divisors is an integer number (224898564).

Almost surely, 2^879148889 is an apocalyptic number.

It is an amenable number.

879148889 is a deficient number, since it is larger than the sum of its proper divisors (20445367).

879148889 is a wasteful number, since it uses less digits than its factorization.

879148889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20445366.

The product of its digits is 9289728, while the sum is 62.

The square root of 879148889 is about 29650.4450050923. The cubic root of 879148889 is about 957.9749300814.

The spelling of 879148889 in words is "eight hundred seventy-nine million, one hundred forty-eight thousand, eight hundred eighty-nine".