4447399 has 4 divisors (see below), whose sum is σ = 4851720. Its totient is φ = 4043080.

The previous prime is 4447321. The next prime is 4447423. The reversal of 4447399 is 9937444.

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 4447399 - 2⁹ = 4446887 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 (4447099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202144 + ... + 202165.

It is an arithmetic number, because the mean of its divisors is an integer number (1212930).

Almost surely, 2^4447399 is an apocalyptic number.

4447399 is a deficient number, since it is larger than the sum of its proper divisors (404321).

4447399 is a wasteful number, since it uses less digits than its factorization.

4447399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404320.

The product of its digits is 108864, while the sum is 40.

The square root of 4447399 is about 2108.8857247371. The cubic root of 4447399 is about 164.4505630214.

The spelling of 4447399 in words is "four million, four hundred forty-seven thousand, three hundred ninety-nine".