8527220 has 24 divisors (see below), whose sum is σ = 19285224. Its totient is φ = 3148416.

The previous prime is 8527213. The next prime is 8527229. The reversal of 8527220 is 227258.

It can be written as a sum of positive squares in 4 ways, for example, as 1860496 + 6666724 = 1364^2 + 2582^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 8527220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8527229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16139 + ... + 16658.

It is an arithmetic number, because the mean of its divisors is an integer number (803551).

Almost surely, 2^8527220 is an apocalyptic number.

It is an amenable number.

8527220 is an abundant number, since it is smaller than the sum of its proper divisors (10758004).

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

8527220 is a wasteful number, since it uses less digits than its factorization.

8527220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32819 (or 32817 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8527220 is about 2920.1404075832. The cubic root of 8527220 is about 204.3003713033.

The spelling of 8527220 in words is "eight million, five hundred twenty-seven thousand, two hundred twenty".