3949725 has 24 divisors (see below), whose sum is σ = 7034272. Its totient is φ = 1944000.

The previous prime is 3949723. The next prime is 3949733. The reversal of 3949725 is 5279493.

3949725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3949725 - 2¹ = 3949723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1051 + ... + 3000.

Almost surely, 2^3949725 is an apocalyptic number.

It is an amenable number.

3949725 is a deficient number, since it is larger than the sum of its proper divisors (3084547).

3949725 is a wasteful number, since it uses less digits than its factorization.

3949725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077 (or 4072 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 3949725 is about 1987.3915064727. The cubic root of 3949725 is about 158.0722443745.

The spelling of 3949725 in words is "three million, nine hundred forty-nine thousand, seven hundred twenty-five".