2638199 has 2 divisors, whose sum is σ = 2638200. Its totient is φ = 2638198.

The previous prime is 2638187. The next prime is 2638201. The reversal of 2638199 is 9918362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2638199 - 2¹⁶ = 2572663 is a prime.

It is a Sophie Germain prime.

Together with 2638201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2634199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319099 + 1319100.

It is an arithmetic number, because the mean of its divisors is an integer number (1319100).

2^2638199 is an apocalyptic number.

2638199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638199 is an equidigital number, since it uses as much as digits as its factorization.

2638199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 2638199 is about 1624.2533669351. The cubic root of 2638199 is about 138.1770289855.

The spelling of 2638199 in words is "two million, six hundred thirty-eight thousand, one hundred ninety-nine".