3256394399 has 2 divisors, whose sum is σ = 3256394400. Its totient is φ = 3256394398.

The previous prime is 3256394371. The next prime is 3256394417. The reversal of 3256394399 is 9934936523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3256394399 - 2⁸ = 3256394143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3256394399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3256394599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628197199 + 1628197200.

It is an arithmetic number, because the mean of its divisors is an integer number (1628197200).

Almost surely, 2^3256394399 is an apocalyptic number.

3256394399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256394399 is an equidigital number, since it uses as much as digits as its factorization.

3256394399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 53.

The square root of 3256394399 is about 57064.8262855500. The cubic root of 3256394399 is about 1482.2188532658.

The spelling of 3256394399 in words is "three billion, two hundred fifty-six million, three hundred ninety-four thousand, three hundred ninety-nine".