27306745 has 16 divisors (see below), whose sum is σ = 33672960. Its totient is φ = 21250944.

The previous prime is 27306739. The next prime is 27306749. The reversal of 27306745 is 54760372.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27306745 - 2¹³ = 27298553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27306745.

It is not an unprimeable number, because it can be changed into a prime (27306749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28362 + ... + 29308.

It is an arithmetic number, because the mean of its divisors is an integer number (2104560).

Almost surely, 2^27306745 is an apocalyptic number.

It is an amenable number.

27306745 is a deficient number, since it is larger than the sum of its proper divisors (6366215).

27306745 is an equidigital number, since it uses as much as digits as its factorization.

27306745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 27306745 is about 5225.5856131155. The cubic root of 27306745 is about 301.1318171889.

The spelling of 27306745 in words is "twenty-seven million, three hundred six thousand, seven hundred forty-five".