641094343 has 2 divisors, whose sum is σ = 641094344. Its totient is φ = 641094342.

The previous prime is 641094319. The next prime is 641094347. The reversal of 641094343 is 343490146.

641094343 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641094343 is a prime.

It is a super-2 number, since 2×641094343² = 822003913253203298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641094299 and 641094308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641094347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320547171 + 320547172.

It is an arithmetic number, because the mean of its divisors is an integer number (320547172).

Almost surely, 2^641094343 is an apocalyptic number.

641094343 is a deficient number, since it is larger than the sum of its proper divisors (1).

641094343 is an equidigital number, since it uses as much as digits as its factorization.

641094343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 641094343 is about 25319.8408960246. The cubic root of 641094343 is about 862.2647818426.

The spelling of 641094343 in words is "six hundred forty-one million, ninety-four thousand, three hundred forty-three".