8757664 has 48 divisors (see below), whose sum is σ = 18349632. Its totient is φ = 4105728.

The previous prime is 8757659. The next prime is 8757691. The reversal of 8757664 is 4667578.

It is a self number, because there is not a number n which added to its sum of digits gives 8757664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53647 + ... + 53809.

It is an arithmetic number, because the mean of its divisors is an integer number (382284).

Almost surely, 2^8757664 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 8757664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9174816).

8757664 is an abundant number, since it is smaller than the sum of its proper divisors (9591968).

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

8757664 is a wasteful number, since it uses less digits than its factorization.

8757664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 8757664 is about 2959.3350604485. The cubic root of 8757664 is about 206.1244103490.

The spelling of 8757664 in words is "eight million, seven hundred fifty-seven thousand, six hundred sixty-four".