424091 has 2 divisors, whose sum is σ = 424092. Its totient is φ = 424090.

The previous prime is 424079. The next prime is 424093. The reversal of 424091 is 190424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424091 - 2⁶ = 424027 is a prime.

Together with 424093, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (424093) 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, 212045 + 212046.

It is an arithmetic number, because the mean of its divisors is an integer number (212046).

2⁴²⁴⁰⁹¹ is an apocalyptic number.

424091 is a deficient number, since it is larger than the sum of its proper divisors (1).

424091 is an equidigital number, since it uses as much as digits as its factorization.

424091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 424091 is about 651.2226961647. Note that the first 3 decimals coincide. The cubic root of 424091 is about 75.1310892598.

The spelling of 424091 in words is "four hundred twenty-four thousand, ninety-one".