422085623 has 4 divisors (see below), whose sum is σ = 425821008. Its totient is φ = 418350240.

The previous prime is 422085613. The next prime is 422085641. The reversal of 422085623 is 326580224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422085623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422085623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422085613) 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, 1867523 + ... + 1867748.

It is an arithmetic number, because the mean of its divisors is an integer number (106455252).

Almost surely, 2^422085623 is an apocalyptic number.

422085623 is a deficient number, since it is larger than the sum of its proper divisors (3735385).

422085623 is a wasteful number, since it uses less digits than its factorization.

422085623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735384.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 422085623 is about 20544.7225096860. The cubic root of 422085623 is about 750.1247928641.

The spelling of 422085623 in words is "four hundred twenty-two million, eighty-five thousand, six hundred twenty-three".