2197799 has 2 divisors, whose sum is σ = 2197800. Its totient is φ = 2197798.

The previous prime is 2197781. The next prime is 2197847. The reversal of 2197799 is 9977912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197799 - 2¹² = 2193703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098899 + 1098900.

It is an arithmetic number, because the mean of its divisors is an integer number (1098900).

2^2197799 is an apocalyptic number.

2197799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197799 is an equidigital number, since it uses as much as digits as its factorization.

2197799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 44.

The square root of 2197799 is about 1482.4975548041. The cubic root of 2197799 is about 130.0157574588.

The spelling of 2197799 in words is "two million, one hundred ninety-seven thousand, seven hundred ninety-nine".