3405816917 has 2 divisors, whose sum is σ = 3405816918. Its totient is φ = 3405816916.

The previous prime is 3405816913. The next prime is 3405816991. The reversal of 3405816917 is 7196185043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3291775876 + 114041041 = 57374^2 + 10679^2 .

It is an emirp because it is prime and its reverse (7196185043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3405816917 - 2² = 3405816913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3405816913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702908458 + 1702908459.

It is an arithmetic number, because the mean of its divisors is an integer number (1702908459).

Almost surely, 2^3405816917 is an apocalyptic number.

It is an amenable number.

3405816917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405816917 is an equidigital number, since it uses as much as digits as its factorization.

3405816917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 3405816917 is about 58359.3772842034. The cubic root of 3405816917 is about 1504.5516435755.

The spelling of 3405816917 in words is "three billion, four hundred five million, eight hundred sixteen thousand, nine hundred seventeen".