422520893 has 2 divisors, whose sum is σ = 422520894. Its totient is φ = 422520892.

The previous prime is 422520887. The next prime is 422520911. The reversal of 422520893 is 398025224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398920729 + 23600164 = 19973^2 + 4858^2 .

It is a cyclic number.

It is not a de Polignac number, because 422520893 - 2⁴ = 422520877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422520863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211260446 + 211260447.

It is an arithmetic number, because the mean of its divisors is an integer number (211260447).

Almost surely, 2^422520893 is an apocalyptic number.

It is an amenable number.

422520893 is a deficient number, since it is larger than the sum of its proper divisors (1).

422520893 is an equidigital number, since it uses as much as digits as its factorization.

422520893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 422520893 is about 20555.3130114820. The cubic root of 422520893 is about 750.3825562419.

The spelling of 422520893 in words is "four hundred twenty-two million, five hundred twenty thousand, eight hundred ninety-three".