4224397 has 2 divisors, whose sum is σ = 4224398. Its totient is φ = 4224396.

The previous prime is 4224391. The next prime is 4224427. The reversal of 4224397 is 7934224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3663396 + 561001 = 1914^2 + 749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4224397 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2⁹ + 2¹¹ + 4¹¹ + 3⁷ + 9⁴ + 7⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4224391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112198 + 2112199.

It is an arithmetic number, because the mean of its divisors is an integer number (2112199).

Almost surely, 2^4224397 is an apocalyptic number.

It is an amenable number.

4224397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224397 is an equidigital number, since it uses as much as digits as its factorization.

4224397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 4224397 is about 2055.3337928424. Note that the first 3 decimals coincide. The cubic root of 4224397 is about 161.6546649727.

The spelling of 4224397 in words is "four million, two hundred twenty-four thousand, three hundred ninety-seven".