8628664 has 32 divisors (see below), whose sum is σ = 18224640. Its totient is φ = 3794400.

The previous prime is 8628661. The next prime is 8628677. The reversal of 8628664 is 4668268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8628661) 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 7 ways as a sum of consecutive naturals, for example, 1147 + ... + 4309.

It is an arithmetic number, because the mean of its divisors is an integer number (569520).

Almost surely, 2^8628664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8628664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9112320).

8628664 is an abundant number, since it is smaller than the sum of its proper divisors (9595976).

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

8628664 is a wasteful number, since it uses less digits than its factorization.

8628664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211 (or 3207 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 8628664 is about 2937.4587656680. The cubic root of 8628664 is about 205.1073322533.

The spelling of 8628664 in words is "eight million, six hundred twenty-eight thousand, six hundred sixty-four".