3889925 has 12 divisors (see below), whose sum is σ = 5194980. Its totient is φ = 2872320.

The previous prime is 3889913. The next prime is 3889933. The reversal of 3889925 is 5299883.

It can be written as a sum of positive squares in 6 ways, for example, as 1170724 + 2719201 = 1082^2 + 1649^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3889925 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5660 + ... + 6309.

It is an arithmetic number, because the mean of its divisors is an integer number (432915).

Almost surely, 2^3889925 is an apocalyptic number.

It is an amenable number.

3889925 is a deficient number, since it is larger than the sum of its proper divisors (1305055).

3889925 is a wasteful number, since it uses less digits than its factorization.

3889925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992 (or 11987 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 3889925 is about 1972.2892789852. The cubic root of 3889925 is about 157.2704306423.

The spelling of 3889925 in words is "three million, eight hundred eighty-nine thousand, nine hundred twenty-five".