422761 has 2 divisors, whose sum is σ = 422762. Its totient is φ = 422760.

The previous prime is 422759. The next prime is 422789. The reversal of 422761 is 167224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225625 + 197136 = 475^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 422761 - 2¹ = 422759 is a prime.

Together with 422759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (422701) 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 as a sum of consecutive naturals, namely, 211380 + 211381.

It is an arithmetic number, because the mean of its divisors is an integer number (211381).

2⁴²²⁷⁶¹ is an apocalyptic number.

It is an amenable number.

422761 is a deficient number, since it is larger than the sum of its proper divisors (1).

422761 is an equidigital number, since it uses as much as digits as its factorization.

422761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 422761 is about 650.2007382340. The cubic root of 422761 is about 75.0524669913.

Adding to 422761 its reverse (167224), we get a palindrome (589985).

The spelling of 422761 in words is "four hundred twenty-two thousand, seven hundred sixty-one".