3959425 has 12 divisors (see below), whose sum is σ = 4958140. Its totient is φ = 3136320.

The previous prime is 3959393. The next prime is 3959441. The reversal of 3959425 is 5249593.

It can be written as a sum of positive squares in 6 ways, for example, as 288369 + 3671056 = 537^2 + 1916^2 .

It is not a de Polignac number, because 3959425 - 2⁵ = 3959393 is a prime.

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, 1999 + ... + 3451.

Almost surely, 2^3959425 is an apocalyptic number.

It is an amenable number.

3959425 is a deficient number, since it is larger than the sum of its proper divisors (998715).

3959425 is a wasteful number, since it uses less digits than its factorization.

3959425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1567 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 3959425 is about 1989.8303947824. The cubic root of 3959425 is about 158.2015400669.

The spelling of 3959425 in words is "three million, nine hundred fifty-nine thousand, four hundred twenty-five".