8613989 has 8 divisors (see below), whose sum is σ = 8853600. Its totient is φ = 8377776.

The previous prime is 8613967. The next prime is 8614003. The reversal of 8613989 is 9893168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8613989 - 2⁸ = 8613733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4787 + ... + 6335.

It is an arithmetic number, because the mean of its divisors is an integer number (1106700).

Almost surely, 2^8613989 is an apocalyptic number.

It is an amenable number.

8613989 is a deficient number, since it is larger than the sum of its proper divisors (239611).

8613989 is a wasteful number, since it uses less digits than its factorization.

8613989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699.

The product of its digits is 93312, while the sum is 44.

The square root of 8613989 is about 2934.9597952953. The cubic root of 8613989 is about 204.9909890943.

The spelling of 8613989 in words is "eight million, six hundred thirteen thousand, nine hundred eighty-nine".