4228917 has 16 divisors (see below), whose sum is σ = 7030272. Its totient is φ = 2196720.

The previous prime is 4228907. The next prime is 4228951. The reversal of 4228917 is 7198224.

It is a happy number.

It is not a de Polignac number, because 4228917 - 2⁴ = 4228901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8923 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (439392).

Almost surely, 2^4228917 is an apocalyptic number.

It is an amenable number.

4228917 is a deficient number, since it is larger than the sum of its proper divisors (2801355).

4228917 is a wasteful number, since it uses less digits than its factorization.

4228917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328.

The product of its digits is 8064, while the sum is 33.

The square root of 4228917 is about 2056.4330769563. The cubic root of 4228917 is about 161.7122999154.

It can be divided in two parts, 422 and 8917, that added together give a palindrome (9339).

The spelling of 4228917 in words is "four million, two hundred twenty-eight thousand, nine hundred seventeen".