3899125 has 8 divisors (see below), whose sum is σ = 4866264. Its totient is φ = 3119200.

The previous prime is 3899117. The next prime is 3899131. The reversal of 3899125 is 5219983.

It can be written as a sum of positive squares in 4 ways, for example, as 178084 + 3721041 = 422^2 + 1929^2 .

It is not a de Polignac number, because 3899125 - 2³ = 3899117 is a prime.

It is an Ulam number.

It is a Duffinian number.

3899125 is a lucky number.

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 7 ways as a sum of consecutive naturals, for example, 15472 + ... + 15721.

It is an arithmetic number, because the mean of its divisors is an integer number (608283).

Almost surely, 2^3899125 is an apocalyptic number.

It is an amenable number.

3899125 is a deficient number, since it is larger than the sum of its proper divisors (967139).

3899125 is an equidigital number, since it uses as much as digits as its factorization.

3899125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31208 (or 31198 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 3899125 is about 1974.6202166493. The cubic root of 3899125 is about 157.3943189596.

The spelling of 3899125 in words is "three million, eight hundred ninety-nine thousand, one hundred twenty-five".