4399625 has 16 divisors (see below), whose sum is σ = 5590416. Its totient is φ = 3456000.

The previous prime is 4399609. The next prime is 4399627. The reversal of 4399625 is 5269934.

It can be written as a sum of positive squares in 8 ways, for example, as 1227664 + 3171961 = 1108^2 + 1781^2 .

It is not a de Polignac number, because 4399625 - 2⁴ = 4399609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7337 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (349401).

Almost surely, 2^4399625 is an apocalyptic number.

It is an amenable number.

4399625 is a deficient number, since it is larger than the sum of its proper divisors (1190791).

4399625 is an equidigital number, since it uses as much as digits as its factorization.

4399625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 643 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 4399625 is about 2097.5283073179. The cubic root of 4399625 is about 163.8595987534.

The spelling of 4399625 in words is "four million, three hundred ninety-nine thousand, six hundred twenty-five".