2196659 has 2 divisors, whose sum is σ = 2196660. Its totient is φ = 2196658.

The previous prime is 2196641. The next prime is 2196673. The reversal of 2196659 is 9566912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2196659 - 2¹² = 2192563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2196619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098329 + 1098330.

It is an arithmetic number, because the mean of its divisors is an integer number (1098330).

2^2196659 is an apocalyptic number.

2196659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196659 is an equidigital number, since it uses as much as digits as its factorization.

2196659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 2196659 is about 1482.1130186325. The cubic root of 2196659 is about 129.9932738137.

The spelling of 2196659 in words is "two million, one hundred ninety-six thousand, six hundred fifty-nine".