423613943 has 2 divisors, whose sum is σ = 423613944. Its totient is φ = 423613942.

The previous prime is 423613913. The next prime is 423614021. The reversal of 423613943 is 349316324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423613943 - 2¹² = 423609847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423613913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211806971 + 211806972.

It is an arithmetic number, because the mean of its divisors is an integer number (211806972).

Almost surely, 2^423613943 is an apocalyptic number.

423613943 is a deficient number, since it is larger than the sum of its proper divisors (1).

423613943 is an equidigital number, since it uses as much as digits as its factorization.

423613943 is an odious number, because the sum of its binary digits is odd.

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

The square root of 423613943 is about 20581.8838544969. The cubic root of 423613943 is about 751.0290721091.

The spelling of 423613943 in words is "four hundred twenty-three million, six hundred thirteen thousand, nine hundred forty-three".