9215272 has 64 divisors (see below), whose sum is σ = 20476800. Its totient is φ = 3843840.

The previous prime is 9215251. The next prime is 9215293. The reversal of 9215272 is 2725129.

It is an interprime number because it is at equal distance from previous prime (9215251) and next prime (9215293).

It is a self number, because there is not a number n which added to its sum of digits gives 9215272.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58618 + ... + 58774.

It is an arithmetic number, because the mean of its divisors is an integer number (319950).

Almost surely, 2^9215272 is an apocalyptic number.

9215272 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9215272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10238400).

9215272 is an abundant number, since it is smaller than the sum of its proper divisors (11261528).

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

9215272 is a wasteful number, since it uses less digits than its factorization.

9215272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 222 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 9215272 is about 3035.6666483657. Note that the first 4 decimals coincide. The cubic root of 9215272 is about 209.6537908481.

The spelling of 9215272 in words is "nine million, two hundred fifteen thousand, two hundred seventy-two".