4393925 has 6 divisors (see below), whose sum is σ = 5448498. Its totient is φ = 3515120.

The previous prime is 4393919. The next prime is 4393933. The reversal of 4393925 is 5293934.

It can be written as a sum of positive squares in 3 ways, for example, as 1442401 + 2951524 = 1201^2 + 1718^2 .

It is not a de Polignac number, because 4393925 - 2¹⁸ = 4131781 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 3⁹ + 9 + 3¹¹ + 9³ + 2¹¹ + 5 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87854 + ... + 87903.

It is an arithmetic number, because the mean of its divisors is an integer number (908083).

Almost surely, 2^4393925 is an apocalyptic number.

It is an amenable number.

4393925 is a deficient number, since it is larger than the sum of its proper divisors (1054573).

4393925 is a wasteful number, since it uses less digits than its factorization.

4393925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175767 (or 175762 counting only the distinct ones).

The product of its digits is 29160, while the sum is 35.

The square root of 4393925 is about 2096.1691248561. The cubic root of 4393925 is about 163.7888045868.

Subtracting 4393925 from its reverse (5293934), we obtain a palindrome (900009).

The spelling of 4393925 in words is "four million, three hundred ninety-three thousand, nine hundred twenty-five".