8638752 has 72 divisors (see below), whose sum is σ = 23705136. Its totient is φ = 2754304.

The previous prime is 8638733. The next prime is 8638807. The reversal of 8638752 is 2578368.

It is a super-2 number, since 2×8638752² = 149256072235008, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8638752.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80683 + ... + 80789.

It is an arithmetic number, because the mean of its divisors is an integer number (329238).

Almost surely, 2^8638752 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 8638752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11852568).

8638752 is an abundant number, since it is smaller than the sum of its proper divisors (15066384).

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

8638752 is a wasteful number, since it uses less digits than its factorization.

8638752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 141 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 8638752 is about 2939.1753945622. The cubic root of 8638752 is about 205.1872332644.

The spelling of 8638752 in words is "eight million, six hundred thirty-eight thousand, seven hundred fifty-two".