8423138 has 16 divisors (see below), whose sum is σ = 12960000. Its totient is φ = 4104672.

The previous prime is 8423117. The next prime is 8423153. The reversal of 8423138 is 8313248.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8423138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13763 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (810000).

Almost surely, 2^8423138 is an apocalyptic number.

8423138 is a deficient number, since it is larger than the sum of its proper divisors (4536862).

8423138 is a wasteful number, since it uses less digits than its factorization.

8423138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its digits is 4608, while the sum is 29.

The square root of 8423138 is about 2902.2642884479. The cubic root of 8423138 is about 203.4657461156.

The spelling of 8423138 in words is "eight million, four hundred twenty-three thousand, one hundred thirty-eight".