3915725 has 24 divisors (see below), whose sum is σ = 5490720. Its totient is φ = 2744000.

The previous prime is 3915719. The next prime is 3915731. The reversal of 3915725 is 5275193.

It is an interprime number because it is at equal distance from previous prime (3915719) and next prime (3915731).

It is not a de Polignac number, because 3915725 - 2⁸ = 3915469 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3915691 and 3915700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7730 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (228780).

Almost surely, 2^3915725 is an apocalyptic number.

It is an amenable number.

3915725 is a deficient number, since it is larger than the sum of its proper divisors (1574995).

3915725 is a wasteful number, since it uses less digits than its factorization.

3915725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 536 counting only the distinct ones).

The product of its digits is 9450, while the sum is 32.

The square root of 3915725 is about 1978.8190922871. The cubic root of 3915725 is about 157.6173644407.

It can be divided in two parts, 391 and 5725, that added together give a palindrome (6116).

The spelling of 3915725 in words is "three million, nine hundred fifteen thousand, seven hundred twenty-five".