422257723 has 4 divisors (see below), whose sum is σ = 422331408. Its totient is φ = 422184040.

The previous prime is 422257711. The next prime is 422257813. The reversal of 422257723 is 327752224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422257723 - 2⁹ = 422257211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422257223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27448 + ... + 39973.

It is an arithmetic number, because the mean of its divisors is an integer number (105582852).

Almost surely, 2^422257723 is an apocalyptic number.

422257723 is a deficient number, since it is larger than the sum of its proper divisors (73685).

422257723 is an equidigital number, since it uses as much as digits as its factorization.

422257723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73684.

The product of its digits is 47040, while the sum is 34.

The square root of 422257723 is about 20548.9105063991. The cubic root of 422257723 is about 750.2267302658.

The spelling of 422257723 in words is "four hundred twenty-two million, two hundred fifty-seven thousand, seven hundred twenty-three".