3425809 has 2 divisors, whose sum is σ = 3425810. Its totient is φ = 3425808.

The previous prime is 3425803. The next prime is 3425831. The reversal of 3425809 is 9085243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 14400 = 1847^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3425809 - 2⁹ = 3425297 is a prime.

It is not a weakly prime, because it can be changed into another prime (3425803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1712904 + 1712905.

It is an arithmetic number, because the mean of its divisors is an integer number (1712905).

Almost surely, 2^3425809 is an apocalyptic number.

It is an amenable number.

3425809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3425809 is an equidigital number, since it uses as much as digits as its factorization.

3425809 is an evil number, because the sum of its binary digits is even.

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

The square root of 3425809 is about 1850.8941082623. The cubic root of 3425809 is about 150.7489798955.

The spelling of 3425809 in words is "three million, four hundred twenty-five thousand, eight hundred nine".