8618904 has 96 divisors (see below), whose sum is σ = 27300000. Its totient is φ = 2455488.

The previous prime is 8618893. The next prime is 8618917. The reversal of 8618904 is 4098168.

It is a happy number.

It is a super-2 number, since 2×8618904² = 148571012322432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24522 + ... + 24870.

It is an arithmetic number, because the mean of its divisors is an integer number (284375).

Almost surely, 2^8618904 is an apocalyptic number.

8618904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8618904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13650000).

8618904 is an abundant number, since it is smaller than the sum of its proper divisors (18681096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8618904 is a wasteful number, since it uses less digits than its factorization.

8618904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8618904 is about 2935.7969957066. The cubic root of 8618904 is about 205.0299698401.

The spelling of 8618904 in words is "eight million, six hundred eighteen thousand, nine hundred four".