4174221 has 4 divisors (see below), whose sum is σ = 5565632. Its totient is φ = 2782812.

The previous prime is 4174207. The next prime is 4174237. The reversal of 4174221 is 1224714.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4174221 - 2¹⁴ = 4157837 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

4174221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4174271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695701 + ... + 695706.

It is an arithmetic number, because the mean of its divisors is an integer number (1391408).

Almost surely, 2^4174221 is an apocalyptic number.

It is an amenable number.

4174221 is a deficient number, since it is larger than the sum of its proper divisors (1391411).

4174221 is a wasteful number, since it uses less digits than its factorization.

4174221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391410.

The product of its digits is 448, while the sum is 21.

The square root of 4174221 is about 2043.0910405560. The cubic root of 4174221 is about 161.0120871035.

Adding to 4174221 its reverse (1224714), we get a palindrome (5398935).

The spelling of 4174221 in words is "four million, one hundred seventy-four thousand, two hundred twenty-one".