4421947 has 2 divisors, whose sum is σ = 4421948. Its totient is φ = 4421946.

The previous prime is 4421941. The next prime is 4421953. The reversal of 4421947 is 7491244.

It is a balanced prime because it is at equal distance from previous prime (4421941) and next prime (4421953).

It is a cyclic number.

It is not a de Polignac number, because 4421947 - 2¹⁹ = 3897659 is a prime.

It is not a weakly prime, because it can be changed into another prime (4421941) 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 as a sum of consecutive naturals, namely, 2210973 + 2210974.

It is an arithmetic number, because the mean of its divisors is an integer number (2210974).

Almost surely, 2^4421947 is an apocalyptic number.

4421947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421947 is an equidigital number, since it uses as much as digits as its factorization.

4421947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 4421947 is about 2102.8425999109. The cubic root of 4421947 is about 164.1362515336.

The spelling of 4421947 in words is "four million, four hundred twenty-one thousand, nine hundred forty-seven".