3209425 has 6 divisors (see below), whose sum is σ = 3979718. Its totient is φ = 2567520.

The previous prime is 3209419. The next prime is 3209431. The reversal of 3209425 is 5249023.

It is a happy number.

3209425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3209419) and next prime (3209431).

It can be written as a sum of positive squares in 3 ways, for example, as 305809 + 2903616 = 553^2 + 1704^2 .

It is not a de Polignac number, because 3209425 - 2⁹ = 3208913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 128377 = 3209425 / (3 + 2 + 0 + 9 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3209425.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 64164 + ... + 64213.

Almost surely, 2^3209425 is an apocalyptic number.

It is an amenable number.

3209425 is a deficient number, since it is larger than the sum of its proper divisors (770293).

3209425 is a wasteful number, since it uses less digits than its factorization.

3209425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128387 (or 128382 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3209425 is about 1791.4868126782. The cubic root of 3209425 is about 147.5057931269.

The spelling of 3209425 in words is "three million, two hundred nine thousand, four hundred twenty-five".