424591 has 4 divisors (see below), whose sum is σ = 426384. Its totient is φ = 422800.

The previous prime is 424577. The next prime is 424597. The reversal of 424591 is 195424.

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 424591 - 2⁵ = 424559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (106596).

2⁴²⁴⁵⁹¹ is an apocalyptic number.

424591 is a deficient number, since it is larger than the sum of its proper divisors (1793).

424591 is a wasteful number, since it uses less digits than its factorization.

424591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792.

The product of its digits is 1440, while the sum is 25.

The square root of 424591 is about 651.6064763337. The cubic root of 424591 is about 75.1606039875.

The spelling of 424591 in words is "four hundred twenty-four thousand, five hundred ninety-one".