3221341391 has 2 divisors, whose sum is σ = 3221341392. Its totient is φ = 3221341390.

The previous prime is 3221341381. The next prime is 3221341477. The reversal of 3221341391 is 1931431223.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3221341391 - 2²⁶ = 3154232527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221341351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610670695 + 1610670696.

It is an arithmetic number, because the mean of its divisors is an integer number (1610670696).

Almost surely, 2^3221341391 is an apocalyptic number.

3221341391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221341391 is an equidigital number, since it uses as much as digits as its factorization.

3221341391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 3221341391 is about 56756.8620608997. The cubic root of 3221341391 is about 1476.8812752499.

The spelling of 3221341391 in words is "three billion, two hundred twenty-one million, three hundred forty-one thousand, three hundred ninety-one".