27307345 has 16 divisors (see below), whose sum is σ = 35501760. Its totient is φ = 20044224.

The previous prime is 27307327. The next prime is 27307361. The reversal of 27307345 is 54370372.

It is a cyclic number.

It is not a de Polignac number, because 27307345 - 2¹⁷ = 27176273 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10462 + ... + 12808.

It is an arithmetic number, because the mean of its divisors is an integer number (2218860).

Almost surely, 2^27307345 is an apocalyptic number.

It is an amenable number.

27307345 is a deficient number, since it is larger than the sum of its proper divisors (8194415).

27307345 is a wasteful number, since it uses less digits than its factorization.

27307345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 27307345 is about 5225.6430226337. The cubic root of 27307345 is about 301.1340227217.

The spelling of 27307345 in words is "twenty-seven million, three hundred seven thousand, three hundred forty-five".