422805783 has 4 divisors (see below), whose sum is σ = 563741048. Its totient is φ = 281870520.

The previous prime is 422805767. The next prime is 422805787. The reversal of 422805783 is 387508224.

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

It is not a de Polignac number, because 422805783 - 2⁴ = 422805767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422805787) 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 in 3 ways as a sum of consecutive naturals, for example, 70467628 + ... + 70467633.

It is an arithmetic number, because the mean of its divisors is an integer number (140935262).

Almost surely, 2^422805783 is an apocalyptic number.

422805783 is a deficient number, since it is larger than the sum of its proper divisors (140935265).

422805783 is a wasteful number, since it uses less digits than its factorization.

422805783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140935264.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 422805783 is about 20562.2416822680. The cubic root of 422805783 is about 750.5511699608.

The spelling of 422805783 in words is "four hundred twenty-two million, eight hundred five thousand, seven hundred eighty-three".