3865925 has 12 divisors (see below), whose sum is σ = 5478816. Its totient is φ = 2650800.

The previous prime is 3865913. The next prime is 3865933. The reversal of 3865925 is 5295683.

It is not a de Polignac number, because 3865925 - 2¹⁰ = 3864901 is a prime.

It is a super-3 number, since 3×3865925³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

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, 10871 + ... + 11220.

It is an arithmetic number, because the mean of its divisors is an integer number (456568).

Almost surely, 2^3865925 is an apocalyptic number.

3865925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3865925 is a deficient number, since it is larger than the sum of its proper divisors (1612891).

3865925 is a wasteful number, since it uses less digits than its factorization.

3865925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22108 (or 22103 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 3865925 is about 1966.1955650443. The cubic root of 3865925 is about 156.9463215956.

The spelling of 3865925 in words is "three million, eight hundred sixty-five thousand, nine hundred twenty-five".