2196289 has 2 divisors, whose sum is σ = 2196290. Its totient is φ = 2196288.

The previous prime is 2196287. The next prime is 2196307. The reversal of 2196289 is 9826912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 400689 = 1340^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196289 - 2¹ = 2196287 is a prime.

Together with 2196287, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2196287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098144 + 1098145.

It is an arithmetic number, because the mean of its divisors is an integer number (1098145).

2^2196289 is an apocalyptic number.

It is an amenable number.

2196289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196289 is an equidigital number, since it uses as much as digits as its factorization.

2196289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 2196289 is about 1481.9881915859. The cubic root of 2196289 is about 129.9859748183.

It can be divided in two parts, 2196 and 289, that added together give a triangular number (2485 = T₇₀).

The spelling of 2196289 in words is "two million, one hundred ninety-six thousand, two hundred eighty-nine".