8723225 has 18 divisors (see below), whose sum is σ = 12584574. Its totient is φ = 5980800.

The previous prime is 8723213. The next prime is 8723243. The reversal of 8723225 is 5223278.

It can be written as a sum of positive squares in 3 ways, for example, as 38416 + 8684809 = 196^2 + 2947^2 .

It is not a de Polignac number, because 8723225 - 2⁸ = 8722969 is a prime.

It is a d-powerful number, because it can be written as 8 + 7³ + 2¹⁶ + 3⁸ + 2¹⁸ + 2²³ + 5² .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2336 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (699143).

Almost surely, 2^8723225 is an apocalyptic number.

It is an amenable number.

8723225 is a deficient number, since it is larger than the sum of its proper divisors (3861349).

8723225 is a wasteful number, since it uses less digits than its factorization.

8723225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145 (or 7133 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 8723225 is about 2953.5106229706. The cubic root of 8723225 is about 205.8538646857.

The spelling of 8723225 in words is "eight million, seven hundred twenty-three thousand, two hundred twenty-five".