8722285 has 24 divisors (see below), whose sum is σ = 12400920. Its totient is φ = 5850240.

The previous prime is 8722283. The next prime is 8722291. The reversal of 8722285 is 5822278.

8722285 is nontrivially palindromic in base 3.

8722285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 352836 + 8369449 = 594^2 + 2893^2 .

It is not a de Polignac number, because 8722285 - 2¹ = 8722283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8722285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7311 + ... + 8419.

It is an arithmetic number, because the mean of its divisors is an integer number (516705).

Almost surely, 2^8722285 is an apocalyptic number.

It is an amenable number.

8722285 is a deficient number, since it is larger than the sum of its proper divisors (3678635).

8722285 is a wasteful number, since it uses less digits than its factorization.

8722285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1138 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 8722285 is about 2953.3514860240. The cubic root of 8722285 is about 205.8464702651.

The spelling of 8722285 in words is "eight million, seven hundred twenty-two thousand, two hundred eighty-five".