27045899 has 4 divisors (see below), whose sum is σ = 27098136. Its totient is φ = 26993664.

The previous prime is 27045883. The next prime is 27045901. The reversal of 27045899 is 99854072.

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 27045899 - 2⁴ = 27045883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27045829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25334 + ... + 26379.

It is an arithmetic number, because the mean of its divisors is an integer number (6774534).

Almost surely, 2^27045899 is an apocalyptic number.

27045899 is a deficient number, since it is larger than the sum of its proper divisors (52237).

27045899 is an equidigital number, since it uses as much as digits as its factorization.

27045899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52236.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 27045899 is about 5200.5671806064. The cubic root of 27045899 is about 300.1699000580.

The spelling of 27045899 in words is "twenty-seven million, forty-five thousand, eight hundred ninety-nine".