4174021 has 2 divisors, whose sum is σ = 4174022. Its totient is φ = 4174020.

The previous prime is 4174013. The next prime is 4174039. The reversal of 4174021 is 1204714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3381921 + 792100 = 1839^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 4174021 - 2³ = 4174013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4174021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4174421) 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, 2087010 + 2087011.

It is an arithmetic number, because the mean of its divisors is an integer number (2087011).

Almost surely, 2^4174021 is an apocalyptic number.

It is an amenable number.

4174021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4174021 is an equidigital number, since it uses as much as digits as its factorization.

4174021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4174021 is about 2043.0420945247. The cubic root of 4174021 is about 161.0095155314.

Adding to 4174021 its reverse (1204714), we get a palindrome (5378735).

The spelling of 4174021 in words is "four million, one hundred seventy-four thousand, twenty-one".