4197239 has 2 divisors, whose sum is σ = 4197240. Its totient is φ = 4197238.

The previous prime is 4197203. The next prime is 4197251. The reversal of 4197239 is 9327914.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4197239 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4¹¹ + 1 + 9 + 7⁴ + 2⁹ + 3 + 9 .

It is a junction number, because it is equal to n+sod(n) for n = 4197199 and 4197208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098619 + 2098620.

It is an arithmetic number, because the mean of its divisors is an integer number (2098620).

Almost surely, 2^4197239 is an apocalyptic number.

4197239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197239 is an equidigital number, since it uses as much as digits as its factorization.

4197239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 4197239 is about 2048.7164274247. The cubic root of 4197239 is about 161.3075022772.

The spelling of 4197239 in words is "four million, one hundred ninety-seven thousand, two hundred thirty-nine".