4221799 has 2 divisors, whose sum is σ = 4221800. Its totient is φ = 4221798.

The previous prime is 4221787. The next prime is 4221827. The reversal of 4221799 is 9971224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221799 - 2⁷ = 4221671 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221769) 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, 2110899 + 2110900.

It is an arithmetic number, because the mean of its divisors is an integer number (2110900).

Almost surely, 2^4221799 is an apocalyptic number.

4221799 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221799 is an equidigital number, since it uses as much as digits as its factorization.

4221799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 4221799 is about 2054.7016815100. The cubic root of 4221799 is about 161.6215190235.

The spelling of 4221799 in words is "four million, two hundred twenty-one thousand, seven hundred ninety-nine".