641324339 has 2 divisors, whose sum is σ = 641324340. Its totient is φ = 641324338.

The previous prime is 641324287. The next prime is 641324351. The reversal of 641324339 is 933423146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 641324339 - 2²⁸ = 372888883 is a prime.

It is a super-2 number, since 2×641324339² = 822593815587573842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641324299 and 641324308.

It is not a weakly prime, because it can be changed into another prime (641324389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320662169 + 320662170.

It is an arithmetic number, because the mean of its divisors is an integer number (320662170).

Almost surely, 2^641324339 is an apocalyptic number.

641324339 is a deficient number, since it is larger than the sum of its proper divisors (1).

641324339 is an equidigital number, since it uses as much as digits as its factorization.

641324339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 35.

The square root of 641324339 is about 25324.3823024373. The cubic root of 641324339 is about 862.3678835373.

The spelling of 641324339 in words is "six hundred forty-one million, three hundred twenty-four thousand, three hundred thirty-nine".