27916199 has 4 divisors (see below), whose sum is σ = 27994320. Its totient is φ = 27838080.

The previous prime is 27916177. The next prime is 27916201. The reversal of 27916199 is 99161972.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27916199 - 2¹⁶ = 27850663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27916129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38522 + ... + 39239.

It is an arithmetic number, because the mean of its divisors is an integer number (6998580).

Almost surely, 2^27916199 is an apocalyptic number.

27916199 is a deficient number, since it is larger than the sum of its proper divisors (78121).

27916199 is an equidigital number, since it uses as much as digits as its factorization.

27916199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78120.

The product of its digits is 61236, while the sum is 44.

The square root of 27916199 is about 5283.5782382775. The cubic root of 27916199 is about 303.3556549474.

It can be divided in two parts, 279 and 16199, that multiplied together give a triangular number (4519521 = T₃₀₀₆).

The spelling of 27916199 in words is "twenty-seven million, nine hundred sixteen thousand, one hundred ninety-nine".