8423394111 has 24 divisors (see below), whose sum is σ = 13278182736. Its totient is φ = 5103181440.

The previous prime is 8423394071. The next prime is 8423394131. The reversal of 8423394111 is 1114933248.

8423394111 is a `hidden beast` number, since 8 + 4 + 233 + 9 + 411 + 1 = 666.

It is not a de Polignac number, because 8423394111 - 2⁹ = 8423393599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423394131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277941 + ... + 306753.

It is an arithmetic number, because the mean of its divisors is an integer number (553257614).

Almost surely, 2^8423394111 is an apocalyptic number.

8423394111 is a deficient number, since it is larger than the sum of its proper divisors (4854788625).

8423394111 is a wasteful number, since it uses less digits than its factorization.

8423394111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31783 (or 31780 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8423394111 is about 91779.0505017349. The cubic root of 8423394111 is about 2034.6780826420.

The spelling of 8423394111 in words is "eight billion, four hundred twenty-three million, three hundred ninety-four thousand, one hundred eleven".