27868091 has 4 divisors (see below), whose sum is σ = 27907152. Its totient is φ = 27829032.

The previous prime is 27868073. The next prime is 27868097. The reversal of 27868091 is 19086872.

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 27868091 - 2²² = 23673787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27868097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18440 + ... + 19893.

It is an arithmetic number, because the mean of its divisors is an integer number (6976788).

Almost surely, 2^27868091 is an apocalyptic number.

27868091 is a deficient number, since it is larger than the sum of its proper divisors (39061).

27868091 is an equidigital number, since it uses as much as digits as its factorization.

27868091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39060.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 27868091 is about 5279.0236786739. The cubic root of 27868091 is about 303.1812971003.

The spelling of 27868091 in words is "twenty-seven million, eight hundred sixty-eight thousand, ninety-one".