8879891 has 4 divisors (see below), whose sum is σ = 8933232. Its totient is φ = 8826552.

The previous prime is 8879869. The next prime is 8879911. The reversal of 8879891 is 1989788.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8879891 - 2¹⁰ = 8878867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8879861) 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, 26420 + ... + 26753.

It is an arithmetic number, because the mean of its divisors is an integer number (2233308).

Almost surely, 2^8879891 is an apocalyptic number.

8879891 is a deficient number, since it is larger than the sum of its proper divisors (53341).

8879891 is a wasteful number, since it uses less digits than its factorization.

8879891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53340.

The product of its digits is 290304, while the sum is 50.

The square root of 8879891 is about 2979.9145960916. The cubic root of 8879891 is about 207.0789138004.

The spelling of 8879891 in words is "eight million, eight hundred seventy-nine thousand, eight hundred ninety-one".