4221169 has 2 divisors, whose sum is σ = 4221170. Its totient is φ = 4221168.

The previous prime is 4221109. The next prime is 4221179. The reversal of 4221169 is 9611224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 1787569 = 1560^2 + 1337^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221169 - 2¹³ = 4212977 is a prime.

It is a super-2 number, since 2×4221169² = 35636535453122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4221109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110584 + 2110585.

It is an arithmetic number, because the mean of its divisors is an integer number (2110585).

Almost surely, 2^4221169 is an apocalyptic number.

It is an amenable number.

4221169 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221169 is an equidigital number, since it uses as much as digits as its factorization.

4221169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 4221169 is about 2054.5483688636. The cubic root of 4221169 is about 161.6134792738.

The spelling of 4221169 in words is "four million, two hundred twenty-one thousand, one hundred sixty-nine".