8632520 has 48 divisors (see below), whose sum is σ = 21048660. Its totient is φ = 3184896.

The previous prime is 8632513. The next prime is 8632523. The reversal of 8632520 is 252368.

It can be written as a sum of positive squares in 6 ways, for example, as 1331716 + 7300804 = 1154^2 + 2702^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 8632520.

It is not an unprimeable number, because it can be changed into a prime (8632523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6122 + ... + 7398.

Almost surely, 2^8632520 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 8632520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10524330).

8632520 is an abundant number, since it is smaller than the sum of its proper divisors (12416140).

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

8632520 is a wasteful number, since it uses less digits than its factorization.

8632520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8632520 is about 2938.1150419955. The cubic root of 8632520 is about 205.1378806708.

Adding to 8632520 its reverse (252368), we get a palindrome (8884888).

The spelling of 8632520 in words is "eight million, six hundred thirty-two thousand, five hundred twenty".