2201897 has 2 divisors, whose sum is σ = 2201898. Its totient is φ = 2201896.

The previous prime is 2201839. The next prime is 2201911. The reversal of 2201897 is 7981022.

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., 1771561 + 430336 = 1331^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201897 - 2¹⁰ = 2200873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100948 + 1100949.

It is an arithmetic number, because the mean of its divisors is an integer number (1100949).

2^2201897 is an apocalyptic number.

It is an amenable number.

2201897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201897 is an equidigital number, since it uses as much as digits as its factorization.

2201897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2201897 is about 1483.8790381968. The cubic root of 2201897 is about 130.0965160969.

The spelling of 2201897 in words is "two million, two hundred one thousand, eight hundred ninety-seven".