422593 has 4 divisors (see below), whose sum is σ = 426580. Its totient is φ = 418608.

The previous prime is 422581. The next prime is 422621. The reversal of 422593 is 395224.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 199809 + 222784 = 447^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 422593 - 2¹⁷ = 291521 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 2³ + 5⁵ + 2¹⁷ + 9⁴ + 3⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422563) 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, 1830 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (106645).

2⁴²²⁵⁹³ is an apocalyptic number.

It is an amenable number.

422593 is a deficient number, since it is larger than the sum of its proper divisors (3987).

422593 is a wasteful number, since it uses less digits than its factorization.

422593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986.

The product of its digits is 2160, while the sum is 25.

The square root of 422593 is about 650.0715345252. The cubic root of 422593 is about 75.0425240330.

The spelling of 422593 in words is "four hundred twenty-two thousand, five hundred ninety-three".