422599 has 4 divisors (see below), whose sum is σ = 424440. Its totient is φ = 420760.

The previous prime is 422581. The next prime is 422621. The reversal of 422599 is 995224.

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 422599 - 2⁵ = 422567 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422549) 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, 517 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (106110).

2⁴²²⁵⁹⁹ is an apocalyptic number.

422599 is a deficient number, since it is larger than the sum of its proper divisors (1841).

422599 is a wasteful number, since it uses less digits than its factorization.

422599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its digits is 6480, while the sum is 31.

The square root of 422599 is about 650.0761493856. The cubic root of 422599 is about 75.0428791840.

The spelling of 422599 in words is "four hundred twenty-two thousand, five hundred ninety-nine".