8399443 has 8 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 7730688.

The previous prime is 8399441. The next prime is 8399459. The reversal of 8399443 is 3449938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8399443 - 2¹ = 8399441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8399396 and 8399405.

It is not an unprimeable number, because it can be changed into a prime (8399441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^8399443 is an apocalyptic number.

8399443 is a deficient number, since it is larger than the sum of its proper divisors (672557).

8399443 is a wasteful number, since it uses less digits than its factorization.

8399443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901.

The product of its digits is 93312, while the sum is 40.

The square root of 8399443 is about 2898.1792560157. The cubic root of 8399443 is about 203.2747781464.

The spelling of 8399443 in words is "eight million, three hundred ninety-nine thousand, four hundred forty-three".