8638372 has 12 divisors (see below), whose sum is σ = 15486156. Its totient is φ = 4213760.

The previous prime is 8638349. The next prime is 8638373. The reversal of 8638372 is 2738368.

8638372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 6937956 = 1304^2 + 2634^2 .

It is not an unprimeable number, because it can be changed into a prime (8638373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26173 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (1290513).

Almost surely, 2^8638372 is an apocalyptic number.

8638372 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8638372 is a deficient number, since it is larger than the sum of its proper divisors (6847784).

8638372 is a wasteful number, since it uses less digits than its factorization.

8638372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52718 (or 52716 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 8638372 is about 2939.1107498698. The cubic root of 8638372 is about 205.1842246396.

The spelling of 8638372 in words is "eight million, six hundred thirty-eight thousand, three hundred seventy-two".