4228997 has 4 divisors (see below), whose sum is σ = 4237356. Its totient is φ = 4220640.

The previous prime is 4228993. The next prime is 4229003. The reversal of 4228997 is 7998224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 538756 + 3690241 = 734^2 + 1921^2 .

It is a cyclic number.

It is not a de Polignac number, because 4228997 - 2² = 4228993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228993) 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, 3368 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (1059339).

Almost surely, 2^4228997 is an apocalyptic number.

It is an amenable number.

4228997 is a deficient number, since it is larger than the sum of its proper divisors (8359).

4228997 is an equidigital number, since it uses as much as digits as its factorization.

4228997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358.

The product of its digits is 72576, while the sum is 41.

The square root of 4228997 is about 2056.4525280200. The cubic root of 4228997 is about 161.7133196330.

It can be divided in two parts, 4228 and 997, that added together give a palindrome (5225).

The spelling of 4228997 in words is "four million, two hundred twenty-eight thousand, nine hundred ninety-seven".