3198007409 has 2 divisors, whose sum is σ = 3198007410. Its totient is φ = 3198007408.

The previous prime is 3198007387. The next prime is 3198007427. The reversal of 3198007409 is 9047008913.

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., 3177802384 + 20205025 = 56372^2 + 4495^2 .

It is an emirp because it is prime and its reverse (9047008913) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3198007409 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 (3198007429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599003704 + 1599003705.

It is an arithmetic number, because the mean of its divisors is an integer number (1599003705).

Almost surely, 2^3198007409 is an apocalyptic number.

It is an amenable number.

3198007409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3198007409 is an equidigital number, since it uses as much as digits as its factorization.

3198007409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 3198007409 is about 56550.9275697579. The cubic root of 3198007409 is about 1473.3066706146.

The spelling of 3198007409 in words is "three billion, one hundred ninety-eight million, seven thousand, four hundred nine".