2188799 has 2 divisors, whose sum is σ = 2188800. Its totient is φ = 2188798.

The previous prime is 2188789. The next prime is 2188807. The reversal of 2188799 is 9978812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2188799 - 2⁴ = 2188783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2188729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094399 + 1094400.

It is an arithmetic number, because the mean of its divisors is an integer number (1094400).

2^2188799 is an apocalyptic number.

2188799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188799 is an equidigital number, since it uses as much as digits as its factorization.

2188799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 44.

The square root of 2188799 is about 1479.4590227512. The cubic root of 2188799 is about 129.8380428897.

The spelling of 2188799 in words is "two million, one hundred eighty-eight thousand, seven hundred ninety-nine".