8657879 has 4 divisors (see below), whose sum is σ = 9167184. Its totient is φ = 8148576.

The previous prime is 8657851. The next prime is 8657881. The reversal of 8657879 is 9787568.

It is a happy number.

8657879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8657879 - 2¹⁶ = 8592343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8657849) 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, 254627 + ... + 254660.

It is an arithmetic number, because the mean of its divisors is an integer number (2291796).

Almost surely, 2^8657879 is an apocalyptic number.

8657879 is a deficient number, since it is larger than the sum of its proper divisors (509305).

8657879 is a wasteful number, since it uses less digits than its factorization.

8657879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509304.

The product of its digits is 846720, while the sum is 50.

The square root of 8657879 is about 2942.4273992743. The cubic root of 8657879 is about 205.3385561747.

The spelling of 8657879 in words is "eight million, six hundred fifty-seven thousand, eight hundred seventy-nine".