8661372 has 24 divisors (see below), whose sum is σ = 20907600. Its totient is φ = 2787456.

The previous prime is 8661353. The next prime is 8661383. The reversal of 8661372 is 2731668.

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, 12097 + ... + 12792.

It is an arithmetic number, because the mean of its divisors is an integer number (871150).

Almost surely, 2^8661372 is an apocalyptic number.

It is an amenable number.

8661372 is an abundant number, since it is smaller than the sum of its proper divisors (12246228).

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

8661372 is a wasteful number, since it uses less digits than its factorization.

8661372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24925 (or 24923 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 8661372 is about 2943.0208969696. The cubic root of 8661372 is about 205.3661669071.

The spelling of 8661372 in words is "eight million, six hundred sixty-one thousand, three hundred seventy-two".