3609209893 has 2 divisors, whose sum is σ = 3609209894. Its totient is φ = 3609209892.

The previous prime is 3609209833. The next prime is 3609209897. The reversal of 3609209893 is 3989029063.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149435044 + 1459774849 = 46362^2 + 38207^2 .

It is a cyclic number.

It is not a de Polignac number, because 3609209893 - 2²⁹ = 3072338981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3609209897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804604946 + 1804604947.

It is an arithmetic number, because the mean of its divisors is an integer number (1804604947).

Almost surely, 2^3609209893 is an apocalyptic number.

It is an amenable number.

3609209893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3609209893 is an equidigital number, since it uses as much as digits as its factorization.

3609209893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 3609209893 is about 60076.7000841424. The cubic root of 3609209893 is about 1533.9247199535.

The spelling of 3609209893 in words is "three billion, six hundred nine million, two hundred nine thousand, eight hundred ninety-three".