8618889 has 8 divisors (see below), whose sum is σ = 11550400. Its totient is φ = 5716656.

The previous prime is 8618879. The next prime is 8618893. The reversal of 8618889 is 9888168.

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

It is not a de Polignac number, because 8618889 - 2⁹ = 8618377 is a prime.

It is a Duffinian number.

8618889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8618809) 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, 6622 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (1443800).

Almost surely, 2^8618889 is an apocalyptic number.

It is an amenable number.

8618889 is a deficient number, since it is larger than the sum of its proper divisors (2931511).

8618889 is a wasteful number, since it uses less digits than its factorization.

8618889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14639.

The product of its digits is 221184, while the sum is 48.

The square root of 8618889 is about 2935.7944410330. The cubic root of 8618889 is about 205.0298508980.

The spelling of 8618889 in words is "eight million, six hundred eighteen thousand, eight hundred eighty-nine".