2117699 has 2 divisors, whose sum is σ = 2117700. Its totient is φ = 2117698.

The previous prime is 2117677. The next prime is 2117701. The reversal of 2117699 is 9967112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2117699 - 2¹² = 2113603 is a prime.

Together with 2117701, 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 (2117099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058849 + 1058850.

It is an arithmetic number, because the mean of its divisors is an integer number (1058850).

2^2117699 is an apocalyptic number.

2117699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117699 is an equidigital number, since it uses as much as digits as its factorization.

2117699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 35.

The square root of 2117699 is about 1455.2315966883. The cubic root of 2117699 is about 128.4166719422.

The spelling of 2117699 in words is "two million, one hundred seventeen thousand, six hundred ninety-nine".