3813925 has 12 divisors (see below), whose sum is σ = 4753540. Its totient is φ = 3035520.

The previous prime is 3813913. The next prime is 3813941. The reversal of 3813925 is 5293183.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 58081 + 3755844 = 241^2 + 1938^2 .

It is not a de Polignac number, because 3813925 - 2⁵ = 3813893 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 9121 + ... + 9529.

Almost surely, 2^3813925 is an apocalyptic number.

It is an amenable number.

3813925 is a deficient number, since it is larger than the sum of its proper divisors (939615).

3813925 is a wasteful number, since it uses less digits than its factorization.

3813925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 787 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 3813925 is about 1952.9272899932. The cubic root of 3813925 is about 156.2394552884.

The spelling of 3813925 in words is "three million, eight hundred thirteen thousand, nine hundred twenty-five".