4197797 has 2 divisors, whose sum is σ = 4197798. Its totient is φ = 4197796.

The previous prime is 4197769. The next prime is 4197821. The reversal of 4197797 is 7977914.

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., 3786916 + 410881 = 1946^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 4197797 - 2⁸ = 4197541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098898 + 2098899.

It is an arithmetic number, because the mean of its divisors is an integer number (2098899).

Almost surely, 2^4197797 is an apocalyptic number.

It is an amenable number.

4197797 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197797 is an equidigital number, since it uses as much as digits as its factorization.

4197797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 44.

The square root of 4197797 is about 2048.8526057284. The cubic root of 4197797 is about 161.3146502775.

Subtracting from 4197797 its sum of digits (44), we obtain a triangular number (4197753 = T₂₈₉₇).

It can be divided in two parts, 4197 and 797, that added together give a palindrome (4994).

The spelling of 4197797 in words is "four million, one hundred ninety-seven thousand, seven hundred ninety-seven".