423091 has 2 divisors, whose sum is σ = 423092. Its totient is φ = 423090.

The previous prime is 423083. The next prime is 423097. The reversal of 423091 is 190324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423091 - 2³ = 423083 is a prime.

It is not a weakly prime, because it can be changed into another prime (423097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211545 + 211546.

It is an arithmetic number, because the mean of its divisors is an integer number (211546).

2⁴²³⁰⁹¹ is an apocalyptic number.

423091 is a deficient number, since it is larger than the sum of its proper divisors (1).

423091 is an equidigital number, since it uses as much as digits as its factorization.

423091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 423091 is about 650.4544565148. The cubic root of 423091 is about 75.0719901361.

The spelling of 423091 in words is "four hundred twenty-three thousand, ninety-one".