445943 has 2 divisors, whose sum is σ = 445944. Its totient is φ = 445942.

The previous prime is 445937. The next prime is 445967. The reversal of 445943 is 349544.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222971 + 222972.

It is an arithmetic number, because the mean of its divisors is an integer number (222972).

2⁴⁴⁵⁹⁴³ is an apocalyptic number.

445943 is a deficient number, since it is larger than the sum of its proper divisors (1).

445943 is an equidigital number, since it uses as much as digits as its factorization.

445943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 445943 is about 667.7896375357. The cubic root of 445943 is about 76.3999575121.

The spelling of 445943 in words is "four hundred forty-five thousand, nine hundred forty-three".