422471843 has 4 divisors (see below), whose sum is σ = 440840208. Its totient is φ = 404103480.

The previous prime is 422471779. The next prime is 422471873. The reversal of 422471843 is 348174224.

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 422471843 - 2⁶ = 422471779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422471873) 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, 9184148 + ... + 9184193.

It is an arithmetic number, because the mean of its divisors is an integer number (110210052).

Almost surely, 2^422471843 is an apocalyptic number.

422471843 is a deficient number, since it is larger than the sum of its proper divisors (18368365).

422471843 is a wasteful number, since it uses less digits than its factorization.

422471843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368364.

The product of its digits is 43008, while the sum is 35.

The square root of 422471843 is about 20554.1198546666. The cubic root of 422471843 is about 750.3535180812.

It can be divided in two parts, 4224 and 71843, that added together give a palindrome (76067).

The spelling of 422471843 in words is "four hundred twenty-two million, four hundred seventy-one thousand, eight hundred forty-three".