422705 has 8 divisors (see below), whose sum is σ = 537192. Its totient is φ = 318208.

The previous prime is 422701. The next prime is 422707. The reversal of 422705 is 507224.

It can be written as a sum of positive squares in 4 ways, for example, as 113569 + 309136 = 337^2 + 556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422705 - 2² = 422701 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422705.

It is not an unprimeable number, because it can be changed into a prime (422701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (67149).

2⁴²²⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

422705 is a deficient number, since it is larger than the sum of its proper divisors (114487).

422705 is a wasteful number, since it uses less digits than its factorization.

422705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 422705 is about 650.1576731840. The cubic root of 422705 is about 75.0491529646.

Adding to 422705 its reverse (507224), we get a palindrome (929929).

The spelling of 422705 in words is "four hundred twenty-two thousand, seven hundred five".