4421899 has 2 divisors, whose sum is σ = 4421900. Its totient is φ = 4421898.

The previous prime is 4421897. The next prime is 4421903. The reversal of 4421899 is 9981244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4421899 - 2¹ = 4421897 is a prime.

Together with 4421897, it forms a pair of twin primes.

4421899 is a lucky number.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (4421897) 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 as a sum of consecutive naturals, namely, 2210949 + 2210950.

It is an arithmetic number, because the mean of its divisors is an integer number (2210950).

Almost surely, 2^4421899 is an apocalyptic number.

4421899 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421899 is an equidigital number, since it uses as much as digits as its factorization.

4421899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 4421899 is about 2102.8311867575. The cubic root of 4421899 is about 164.1356576347.

The spelling of 4421899 in words is "four million, four hundred twenty-one thousand, eight hundred ninety-nine".