27616091 has 4 divisors (see below), whose sum is σ = 28568400. Its totient is φ = 26663784.

The previous prime is 27616087. The next prime is 27616093. The reversal of 27616091 is 19061672.

It is a happy number.

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 27616091 - 2² = 27616087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27616093) 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, 476111 + ... + 476168.

It is an arithmetic number, because the mean of its divisors is an integer number (7142100).

Almost surely, 2^27616091 is an apocalyptic number.

27616091 is a deficient number, since it is larger than the sum of its proper divisors (952309).

27616091 is an equidigital number, since it uses as much as digits as its factorization.

27616091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952308.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 27616091 is about 5255.1014262334. The cubic root of 27616091 is about 302.2646795878.

The spelling of 27616091 in words is "twenty-seven million, six hundred sixteen thousand, ninety-one".