3949025 has 12 divisors (see below), whose sum is σ = 4936812. Its totient is φ = 3133440.

The previous prime is 3949013. The next prime is 3949027. The reversal of 3949025 is 5209493.

It can be written as a sum of positive squares in 6 ways, for example, as 12769 + 3936256 = 113^2 + 1984^2 .

It is not a de Polignac number, because 3949025 - 2¹⁴ = 3932641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3948982 and 3949000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2849 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (411401).

Almost surely, 2^3949025 is an apocalyptic number.

It is an amenable number.

3949025 is a deficient number, since it is larger than the sum of its proper divisors (987787).

3949025 is a wasteful number, since it uses less digits than its factorization.

3949025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3949025 is about 1987.2153884267. The cubic root of 3949025 is about 158.0629055718.

The spelling of 3949025 in words is "three million, nine hundred forty-nine thousand, twenty-five".