8522272 has 72 divisors (see below), whose sum is σ = 19305216. Its totient is φ = 3696000.

The previous prime is 8522251. The next prime is 8522281. The reversal of 8522272 is 2722258.

It is a d-powerful number, because it can be written as 8² + 5³ + 2 + 2¹⁷ + 2²² + 7⁴ + 2²² .

It is a self number, because there is not a number n which added to its sum of digits gives 8522272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119997 + ... + 120067.

It is an arithmetic number, because the mean of its divisors is an integer number (268128).

Almost surely, 2^8522272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8522272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9652608).

8522272 is an abundant number, since it is smaller than the sum of its proper divisors (10782944).

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

8522272 is a wasteful number, since it uses less digits than its factorization.

8522272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 115 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 8522272 is about 2919.2930651101. The cubic root of 8522272 is about 204.2608479172.

The spelling of 8522272 in words is "eight million, five hundred twenty-two thousand, two hundred seventy-two".