8618979 has 16 divisors (see below), whose sum is σ = 11934720. Its totient is φ = 5528640.

The previous prime is 8618959. The next prime is 8618999. The reversal of 8618979 is 9798168.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8618959) and next prime (8618999).

It is not a de Polignac number, because 8618979 - 2⁷ = 8618851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8618959) 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 15 ways as a sum of consecutive naturals, for example, 9274 + ... + 10160.

It is an arithmetic number, because the mean of its divisors is an integer number (745920).

Almost surely, 2^8618979 is an apocalyptic number.

8618979 is a deficient number, since it is larger than the sum of its proper divisors (3315741).

8618979 is a wasteful number, since it uses less digits than its factorization.

8618979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its digits is 217728, while the sum is 48.

The square root of 8618979 is about 2935.8097690416. The cubic root of 8618979 is about 205.0305645484.

It can be divided in two parts, 86189 and 79, that added together give a palindrome (86268).

The spelling of 8618979 in words is "eight million, six hundred eighteen thousand, nine hundred seventy-nine".