2742197 has 2 divisors, whose sum is σ = 2742198. Its totient is φ = 2742196.

The previous prime is 2742163. The next prime is 2742199. The reversal of 2742197 is 7912472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1957201 + 784996 = 1399^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742197 - 2⁸ = 2741941 is a prime.

Together with 2742199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2742199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371098 + 1371099.

It is an arithmetic number, because the mean of its divisors is an integer number (1371099).

2^2742197 is an apocalyptic number.

It is an amenable number.

2742197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742197 is an equidigital number, since it uses as much as digits as its factorization.

2742197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 2742197 is about 1655.9580308691. The cubic root of 2742197 is about 139.9693300163.

It can be divided in two parts, 27 and 42197, that added together give a palindrome (42224).

The spelling of 2742197 in words is "two million, seven hundred forty-two thousand, one hundred ninety-seven".