2289197 has 2 divisors, whose sum is σ = 2289198. Its totient is φ = 2289196.

The previous prime is 2289193. The next prime is 2289211. The reversal of 2289197 is 7919822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811716 + 477481 = 1346^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 2289197 - 2² = 2289193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2289197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2289193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144598 + 1144599.

It is an arithmetic number, because the mean of its divisors is an integer number (1144599).

2^2289197 is an apocalyptic number.

It is an amenable number.

2289197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2289197 is an equidigital number, since it uses as much as digits as its factorization.

2289197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 2289197 is about 1513.0092531112. The cubic root of 2289197 is about 131.7936207185.

The spelling of 2289197 in words is "two million, two hundred eighty-nine thousand, one hundred ninety-seven".