3809425 has 6 divisors (see below), whose sum is σ = 4723718. Its totient is φ = 3047520.

The previous prime is 3809423. The next prime is 3809431. The reversal of 3809425 is 5249083.

It can be written as a sum of positive squares in 3 ways, for example, as 278784 + 3530641 = 528^2 + 1879^2 .

It is not a de Polignac number, because 3809425 - 2¹ = 3809423 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 (3809423) 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, 76164 + ... + 76213.

Almost surely, 2^3809425 is an apocalyptic number.

It is an amenable number.

3809425 is a deficient number, since it is larger than the sum of its proper divisors (914293).

3809425 is a wasteful number, since it uses less digits than its factorization.

3809425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152387 (or 152382 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3809425 is about 1951.7748333248. The cubic root of 3809425 is about 156.1779828117.

The spelling of 3809425 in words is "three million, eight hundred nine thousand, four hundred twenty-five".