74197 has 2 divisors, whose sum is σ = 74198. Its totient is φ = 74196.

The previous prime is 74189. The next prime is 74201. The reversal of 74197 is 79147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39601 + 34596 = 199^2 + 186^2 .

It is an emirp because it is prime and its reverse (79147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74197 - 2³ = 74189 is a prime.

It is a Chen prime.

74197 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37098 + 37099.

It is an arithmetic number, because the mean of its divisors is an integer number (37099).

2⁷⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

74197 is a deficient number, since it is larger than the sum of its proper divisors (1).

74197 is an equidigital number, since it uses as much as digits as its factorization.

74197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 28.

The square root of 74197 is about 272.3912627086. The cubic root of 74197 is about 42.0205870350.

Subtracting 74197 from its reverse (79147), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 741 and 97, that added together give a palindrome (838).

The spelling of 74197 in words is "seventy-four thousand, one hundred ninety-seven".