8722372 has 12 divisors (see below), whose sum is σ = 15343020. Its totient is φ = 4338656.

The previous prime is 8722367. The next prime is 8722391. The reversal of 8722372 is 2732278.

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 3632836 = 2256^2 + 1906^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4747 + ... + 6322.

It is an arithmetic number, because the mean of its divisors is an integer number (1278585).

Almost surely, 2^8722372 is an apocalyptic number.

It is an amenable number.

8722372 is a deficient number, since it is larger than the sum of its proper divisors (6620648).

8722372 is a wasteful number, since it uses less digits than its factorization.

8722372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270 (or 11268 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 8722372 is about 2953.3662150163. The cubic root of 8722372 is about 205.8471546646.

The spelling of 8722372 in words is "eight million, seven hundred twenty-two thousand, three hundred seventy-two".