4197749 has 2 divisors, whose sum is σ = 4197750. Its totient is φ = 4197748.

The previous prime is 4197737. The next prime is 4197757. The reversal of 4197749 is 9477914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3775249 + 422500 = 1943^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 4197749 - 2²⁰ = 3149173 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁴ + 1 + 9 + 7² + 7⁴ + 4¹¹ + 9³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098874 + 2098875.

It is an arithmetic number, because the mean of its divisors is an integer number (2098875).

Almost surely, 2^4197749 is an apocalyptic number.

It is an amenable number.

4197749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197749 is an equidigital number, since it uses as much as digits as its factorization.

4197749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 4197749 is about 2048.8408918215. The cubic root of 4197749 is about 161.3140354207.

The spelling of 4197749 in words is "four million, one hundred ninety-seven thousand, seven hundred forty-nine".