3399305681 has 2 divisors, whose sum is σ = 3399305682. Its totient is φ = 3399305680.

The previous prime is 3399305671. The next prime is 3399305683. The reversal of 3399305681 is 1865039933.

3399305681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3268980625 + 130325056 = 57175^2 + 11416^2 .

It is an emirp because it is prime and its reverse (1865039933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3399305681 - 2¹⁸ = 3399043537 is a prime.

It is a super-2 number, since 2×3399305681² = 23110558225757747522, which contains 22 as substring.

Together with 3399305683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3399305683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1699652840 + 1699652841.

It is an arithmetic number, because the mean of its divisors is an integer number (1699652841).

Almost surely, 2^3399305681 is an apocalyptic number.

It is an amenable number.

3399305681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3399305681 is an equidigital number, since it uses as much as digits as its factorization.

3399305681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 3399305681 is about 58303.5649081598. The cubic root of 3399305681 is about 1503.5922320084.

The spelling of 3399305681 in words is "three billion, three hundred ninety-nine million, three hundred five thousand, six hundred eighty-one".