27307045 has 4 divisors (see below), whose sum is σ = 32768460. Its totient is φ = 21845632.

The previous prime is 27307039. The next prime is 27307139. The reversal of 27307045 is 54070372.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 20666116 = 2577^2 + 4546^2 .

It is a cyclic number.

It is not a de Polignac number, because 27307045 - 2⁵ = 27307013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2730700 + ... + 2730709.

It is an arithmetic number, because the mean of its divisors is an integer number (8192115).

Almost surely, 2^27307045 is an apocalyptic number.

It is an amenable number.

27307045 is a deficient number, since it is larger than the sum of its proper divisors (5461415).

27307045 is an equidigital number, since it uses as much as digits as its factorization.

27307045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461414.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 27307045 is about 5225.6143179534. The cubic root of 27307045 is about 301.1329199593.

The spelling of 27307045 in words is "twenty-seven million, three hundred seven thousand, forty-five".