8621272 has 24 divisors (see below), whose sum is σ = 17690940. Its totient is φ = 3906240.

The previous prime is 8621243. The next prime is 8621281. The reversal of 8621272 is 2721268.

It is a self number, because there is not a number n which added to its sum of digits gives 8621272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27388 + ... + 27700.

Almost surely, 2^8621272 is an apocalyptic number.

It is an amenable number.

8621272 is an abundant number, since it is smaller than the sum of its proper divisors (9069668).

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

8621272 is a wasteful number, since it uses less digits than its factorization.

8621272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 326 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 8621272 is about 2936.2002656495. The cubic root of 8621272 is about 205.0487451009.

The spelling of 8621272 in words is "eight million, six hundred twenty-one thousand, two hundred seventy-two".