27312199 has 2 divisors, whose sum is σ = 27312200. Its totient is φ = 27312198.

The previous prime is 27312169. The next prime is 27312223. The reversal of 27312199 is 99121372.

It is a happy number.

27312199 is nontrivially palindromic in base 13.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27312199 - 2⁵ = 27312167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27312169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13656099 + 13656100.

It is an arithmetic number, because the mean of its divisors is an integer number (13656100).

Almost surely, 2^27312199 is an apocalyptic number.

27312199 is a deficient number, since it is larger than the sum of its proper divisors (1).

27312199 is an equidigital number, since it uses as much as digits as its factorization.

27312199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 27312199 is about 5226.1074424470. The cubic root of 27312199 is about 301.1518642944.

The spelling of 27312199 in words is "twenty-seven million, three hundred twelve thousand, one hundred ninety-nine".