8438899 has 4 divisors (see below), whose sum is σ = 9644464. Its totient is φ = 7233336.

The previous prime is 8438863. The next prime is 8438909. The reversal of 8438899 is 9988348.

It is a happy number.

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 8438899 - 2⁹ = 8438387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8438099) 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, 602772 + ... + 602785.

It is an arithmetic number, because the mean of its divisors is an integer number (2411116).

Almost surely, 2^8438899 is an apocalyptic number.

8438899 is a deficient number, since it is larger than the sum of its proper divisors (1205565).

8438899 is a wasteful number, since it uses less digits than its factorization.

8438899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205564.

The product of its digits is 497664, while the sum is 49.

The square root of 8438899 is about 2904.9783131721. The cubic root of 8438899 is about 203.5925723865.

It can be divided in two parts, 84 and 38899, that added together give a palindrome (38983).

The spelling of 8438899 in words is "eight million, four hundred thirty-eight thousand, eight hundred ninety-nine".