443434091 has 2 divisors, whose sum is σ = 443434092. Its totient is φ = 443434090.

The previous prime is 443434087. The next prime is 443434129. The reversal of 443434091 is 190434344.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 443434091 - 2² = 443434087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (443434021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221717045 + 221717046.

It is an arithmetic number, because the mean of its divisors is an integer number (221717046).

Almost surely, 2^443434091 is an apocalyptic number.

443434091 is a deficient number, since it is larger than the sum of its proper divisors (1).

443434091 is an equidigital number, since it uses as much as digits as its factorization.

443434091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 443434091 is about 21057.8747978043. The cubic root of 443434091 is about 762.5641066230.

The spelling of 443434091 in words is "four hundred forty-three million, four hundred thirty-four thousand, ninety-one".