3494190809 has 2 divisors, whose sum is σ = 3494190810. Its totient is φ = 3494190808.

The previous prime is 3494190779. The next prime is 3494190811. The reversal of 3494190809 is 9080914943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2944147600 + 550043209 = 54260^2 + 23453^2 .

It is an emirp because it is prime and its reverse (9080914943) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3494190809 is a prime.

It is a Sophie Germain prime.

Together with 3494190811, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3494190709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747095404 + 1747095405.

It is an arithmetic number, because the mean of its divisors is an integer number (1747095405).

Almost surely, 2^3494190809 is an apocalyptic number.

It is an amenable number.

3494190809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3494190809 is an equidigital number, since it uses as much as digits as its factorization.

3494190809 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3494190809 is about 59111.6808169079. The cubic root of 3494190809 is about 1517.4540148023.

The spelling of 3494190809 in words is "three billion, four hundred ninety-four million, one hundred ninety thousand, eight hundred nine".