3815925 has 24 divisors (see below), whose sum is σ = 6395424. Its totient is φ = 2007360.

The previous prime is 3815923. The next prime is 3815927. The reversal of 3815925 is 5295183.

It is an interprime number because it is at equal distance from previous prime (3815923) and next prime (3815927).

It is not a de Polignac number, because 3815925 - 2¹ = 3815923 is a prime.

It is a super-2 number, since 2×3815925² = 29122567211250, which contains 22 as substring.

It is a Curzon number.

3815925 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5919 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (266476).

Almost surely, 2^3815925 is an apocalyptic number.

It is an amenable number.

3815925 is a deficient number, since it is larger than the sum of its proper divisors (2579499).

3815925 is a wasteful number, since it uses less digits than its factorization.

3815925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 704 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 3815925 is about 1953.4392747152. The cubic root of 3815925 is about 156.2667608687.

The spelling of 3815925 in words is "three million, eight hundred fifteen thousand, nine hundred twenty-five".