4227491 has 2 divisors, whose sum is σ = 4227492. Its totient is φ = 4227490.

The previous prime is 4227451. The next prime is 4227511. The reversal of 4227491 is 1947224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4227491 - 2⁶ = 4227427 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4³ + 2 + 2¹⁵ + 7³ + 4¹¹ + 9 + 1 .

It is not a weakly prime, because it can be changed into another prime (4227401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113745 + 2113746.

It is an arithmetic number, because the mean of its divisors is an integer number (2113746).

Almost surely, 2^4227491 is an apocalyptic number.

4227491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4227491 is an equidigital number, since it uses as much as digits as its factorization.

4227491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 4227491 is about 2056.0863308723. The cubic root of 4227491 is about 161.6941212924.

The spelling of 4227491 in words is "four million, two hundred twenty-seven thousand, four hundred ninety-one".