4421399 has 4 divisors (see below), whose sum is σ = 4529280. Its totient is φ = 4313520.

The previous prime is 4421371. The next prime is 4421407. The reversal of 4421399 is 9931244.

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 4421399 - 2⁸ = 4421143 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 (4421299) 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, 53879 + ... + 53960.

It is an arithmetic number, because the mean of its divisors is an integer number (1132320).

Almost surely, 2^4421399 is an apocalyptic number.

4421399 is a deficient number, since it is larger than the sum of its proper divisors (107881).

4421399 is a wasteful number, since it uses less digits than its factorization.

4421399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107880.

The product of its digits is 7776, while the sum is 32.

The square root of 4421399 is about 2102.7122960595. The cubic root of 4421399 is about 164.1294709321.

The spelling of 4421399 in words is "four million, four hundred twenty-one thousand, three hundred ninety-nine".