3849925 has 6 divisors (see below), whose sum is σ = 4773938. Its totient is φ = 3079920.

The previous prime is 3849889. The next prime is 3849929. The reversal of 3849925 is 5299483.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 588289 + 3261636 = 767^2 + 1806^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3849925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3849929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76974 + ... + 77023.

Almost surely, 2^3849925 is an apocalyptic number.

It is an amenable number.

3849925 is a deficient number, since it is larger than the sum of its proper divisors (924013).

3849925 is a wasteful number, since it uses less digits than its factorization.

3849925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154007 (or 154002 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 3849925 is about 1962.1225751721. The cubic root of 3849925 is about 156.7295029868.

It can be divided in two parts, 3849 and 925, that added together give a palindrome (4774).

The spelling of 3849925 in words is "three million, eight hundred forty-nine thousand, nine hundred twenty-five".