8613979 has 4 divisors (see below), whose sum is σ = 9397080. Its totient is φ = 7830880.

The previous prime is 8613967. The next prime is 8614003. The reversal of 8613979 is 9793168.

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 8613979 - 2⁵ = 8613947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8613929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391534 + ... + 391555.

It is an arithmetic number, because the mean of its divisors is an integer number (2349270).

Almost surely, 2^8613979 is an apocalyptic number.

8613979 is a deficient number, since it is larger than the sum of its proper divisors (783101).

8613979 is a wasteful number, since it uses less digits than its factorization.

8613979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783100.

The product of its digits is 81648, while the sum is 43.

The square root of 8613979 is about 2934.9580916940. The cubic root of 8613979 is about 204.9909097694.

The spelling of 8613979 in words is "eight million, six hundred thirteen thousand, nine hundred seventy-nine".