3198803609 has 2 divisors, whose sum is σ = 3198803610. Its totient is φ = 3198803608.

The previous prime is 3198803563. The next prime is 3198803659. The reversal of 3198803609 is 9063088913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3190555225 + 8248384 = 56485^2 + 2872^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198803609 - 2¹⁶ = 3198738073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3198803659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599401804 + 1599401805.

It is an arithmetic number, because the mean of its divisors is an integer number (1599401805).

Almost surely, 2^3198803609 is an apocalyptic number.

It is an amenable number.

3198803609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3198803609 is an equidigital number, since it uses as much as digits as its factorization.

3198803609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 3198803609 is about 56557.9668039791. The cubic root of 3198803609 is about 1473.4289289758.

The spelling of 3198803609 in words is "three billion, one hundred ninety-eight million, eight hundred three thousand, six hundred nine".