27099899 has 2 divisors, whose sum is σ = 27099900. Its totient is φ = 27099898.

The previous prime is 27099889. The next prime is 27099901. The reversal of 27099899 is 99899072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27099899 - 2⁴ = 27099883 is a prime.

Together with 27099901, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27099899.

It is not a weakly prime, because it can be changed into another prime (27099889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13549949 + 13549950.

It is an arithmetic number, because the mean of its divisors is an integer number (13549950).

Almost surely, 2^27099899 is an apocalyptic number.

27099899 is a deficient number, since it is larger than the sum of its proper divisors (1).

27099899 is an equidigital number, since it uses as much as digits as its factorization.

27099899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 27099899 is about 5205.7563331374. The cubic root of 27099899 is about 300.3695409078.

The spelling of 27099899 in words is "twenty-seven million, ninety-nine thousand, eight hundred ninety-nine".