422320537 has 2 divisors, whose sum is σ = 422320538. Its totient is φ = 422320536.

The previous prime is 422320463. The next prime is 422320621. The reversal of 422320537 is 735023224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361418121 + 60902416 = 19011^2 + 7804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422320537 is a prime.

It is not a weakly prime, because it can be changed into another prime (422320237) 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 as a sum of consecutive naturals, namely, 211160268 + 211160269.

It is an arithmetic number, because the mean of its divisors is an integer number (211160269).

Almost surely, 2^422320537 is an apocalyptic number.

It is an amenable number.

422320537 is a deficient number, since it is larger than the sum of its proper divisors (1).

422320537 is an equidigital number, since it uses as much as digits as its factorization.

422320537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 422320537 is about 20550.4388517618. The cubic root of 422320537 is about 750.2639290370.

The spelling of 422320537 in words is "four hundred twenty-two million, three hundred twenty thousand, five hundred thirty-seven".