424187 has 2 divisors, whose sum is σ = 424188. Its totient is φ = 424186.

The previous prime is 424169. The next prime is 424199. The reversal of 424187 is 781424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424187 - 2⁸ = 423931 is a prime.

It is a super-2 number, since 2×424187² = 359869221938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212093 + 212094.

It is an arithmetic number, because the mean of its divisors is an integer number (212094).

2⁴²⁴¹⁸⁷ is an apocalyptic number.

424187 is a deficient number, since it is larger than the sum of its proper divisors (1).

424187 is an equidigital number, since it uses as much as digits as its factorization.

424187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 26.

The square root of 424187 is about 651.2963994987. The cubic root of 424187 is about 75.1367578862.

The spelling of 424187 in words is "four hundred twenty-four thousand, one hundred eighty-seven".