8749225 has 12 divisors (see below), whose sum is σ = 10897740. Its totient is φ = 6968000.

The previous prime is 8749219. The next prime is 8749229. The reversal of 8749225 is 5229478.

It can be written as a sum of positive squares in 6 ways, for example, as 4309776 + 4439449 = 2076^2 + 2107^2 .

It is not a de Polignac number, because 8749225 - 2⁹ = 8748713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8749229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6075 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (908145).

Almost surely, 2^8749225 is an apocalyptic number.

It is an amenable number.

8749225 is a deficient number, since it is larger than the sum of its proper divisors (2148515).

8749225 is a wasteful number, since it uses less digits than its factorization.

8749225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1575 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 8749225 is about 2957.9088897395. The cubic root of 8749225 is about 206.0581810087.

The spelling of 8749225 in words is "eight million, seven hundred forty-nine thousand, two hundred twenty-five".