4389725 has 12 divisors (see below), whose sum is σ = 5547636. Its totient is φ = 3444480.

The previous prime is 4389691. The next prime is 4389727. The reversal of 4389725 is 5279834.

It can be written as a sum of positive squares in 6 ways, for example, as 219961 + 4169764 = 469^2 + 2042^2 .

It is not a de Polignac number, because 4389725 - 2¹² = 4385629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389727) 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, 332 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (462303).

Almost surely, 2^4389725 is an apocalyptic number.

It is an amenable number.

4389725 is a deficient number, since it is larger than the sum of its proper divisors (1157911).

4389725 is a wasteful number, since it uses less digits than its factorization.

4389725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376 (or 3371 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 4389725 is about 2095.1670577784. The cubic root of 4389725 is about 163.7366012773.

The spelling of 4389725 in words is "four million, three hundred eighty-nine thousand, seven hundred twenty-five".