422767 has 4 divisors (see below), whose sum is σ = 424080. Its totient is φ = 421456.

The previous prime is 422761. The next prime is 422789. The reversal of 422767 is 767224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 422767 - 2³ = 422759 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 (422761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198 + ... + 940.

It is an arithmetic number, because the mean of its divisors is an integer number (106020).

2⁴²²⁷⁶⁷ is an apocalyptic number.

422767 is a deficient number, since it is larger than the sum of its proper divisors (1313).

422767 is an equidigital number, since it uses as much as digits as its factorization.

422767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312.

The product of its digits is 4704, while the sum is 28.

The square root of 422767 is about 650.2053521773. The cubic root of 422767 is about 75.0528220483.

It can be divided in two parts, 42 and 2767, that added together give a square (2809 = 53²).

The spelling of 422767 in words is "four hundred twenty-two thousand, seven hundred sixty-seven".