3431009 has 2 divisors, whose sum is σ = 3431010. Its totient is φ = 3431008.

The previous prime is 3430967. The next prime is 3431011. The reversal of 3431009 is 9001343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 19600 = 1847^2 + 140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3431009 is a prime.

Together with 3431011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3431069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715504 + 1715505.

It is an arithmetic number, because the mean of its divisors is an integer number (1715505).

Almost surely, 2^3431009 is an apocalyptic number.

It is an amenable number.

3431009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431009 is an equidigital number, since it uses as much as digits as its factorization.

3431009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3431009 is about 1852.2983021101. The cubic root of 3431009 is about 150.8252147749.

The spelling of 3431009 in words is "three million, four hundred thirty-one thousand, nine".