8423399 has 4 divisors (see below), whose sum is σ = 8619336. Its totient is φ = 8227464.

The previous prime is 8423377. The next prime is 8423407. The reversal of 8423399 is 9933248.

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 8423399 - 2¹² = 8419303 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 (8423329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97904 + ... + 97989.

It is an arithmetic number, because the mean of its divisors is an integer number (2154834).

Almost surely, 2^8423399 is an apocalyptic number.

8423399 is a deficient number, since it is larger than the sum of its proper divisors (195937).

8423399 is a wasteful number, since it uses less digits than its factorization.

8423399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195936.

The product of its digits is 46656, while the sum is 38.

The square root of 8423399 is about 2902.3092529915. The cubic root of 8423399 is about 203.4678476289.

The spelling of 8423399 in words is "eight million, four hundred twenty-three thousand, three hundred ninety-nine".