8616979 has 4 divisors (see below), whose sum is σ = 9847984. Its totient is φ = 7385976.

The previous prime is 8616947. The next prime is 8616989. The reversal of 8616979 is 9796168.

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 8616979 - 2⁵ = 8616947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8616919) 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, 615492 + ... + 615505.

It is an arithmetic number, because the mean of its divisors is an integer number (2461996).

Almost surely, 2^8616979 is an apocalyptic number.

8616979 is a deficient number, since it is larger than the sum of its proper divisors (1231005).

8616979 is a wasteful number, since it uses less digits than its factorization.

8616979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231004.

The product of its digits is 163296, while the sum is 46.

The square root of 8616979 is about 2935.4691277545. The cubic root of 8616979 is about 205.0147044777.

The spelling of 8616979 in words is "eight million, six hundred sixteen thousand, nine hundred seventy-nine".