424387 has 4 divisors (see below), whose sum is σ = 431640. Its totient is φ = 417136.

The previous prime is 424351. The next prime is 424397. The reversal of 424387 is 783424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424387 - 2¹¹ = 422339 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (424397) 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 in 3 ways as a sum of consecutive naturals, for example, 3538 + ... + 3655.

It is an arithmetic number, because the mean of its divisors is an integer number (107910).

2⁴²⁴³⁸⁷ is an apocalyptic number.

424387 is a deficient number, since it is larger than the sum of its proper divisors (7253).

424387 is an equidigital number, since it uses as much as digits as its factorization.

424387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252.

The product of its digits is 5376, while the sum is 28.

The square root of 424387 is about 651.4499213293. The cubic root of 424387 is about 75.1485647784.

The spelling of 424387 in words is "four hundred twenty-four thousand, three hundred eighty-seven".