3559909 has 2 divisors, whose sum is σ = 3559910. Its totient is φ = 3559908.

The previous prime is 3559903. The next prime is 3559931. The reversal of 3559909 is 9099553.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 567009 = 1730^2 + 753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3559909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3559903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1779954 + 1779955.

It is an arithmetic number, because the mean of its divisors is an integer number (1779955).

Almost surely, 2^3559909 is an apocalyptic number.

It is an amenable number.

3559909 is a deficient number, since it is larger than the sum of its proper divisors (1).

3559909 is an equidigital number, since it uses as much as digits as its factorization.

3559909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54675, while the sum is 40.

The square root of 3559909 is about 1886.7721113054. The cubic root of 3559909 is about 152.6908333903.

The spelling of 3559909 in words is "three million, five hundred fifty-nine thousand, nine hundred nine".