27243073 has 16 divisors (see below), whose sum is σ = 32558400. Its totient is φ = 22466880.

The previous prime is 27243067. The next prime is 27243077. The reversal of 27243073 is 37034272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27243073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27243077) 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, 6823 + ... + 10051.

It is an arithmetic number, because the mean of its divisors is an integer number (2034900).

Almost surely, 2^27243073 is an apocalyptic number.

It is an amenable number.

27243073 is a deficient number, since it is larger than the sum of its proper divisors (5315327).

27243073 is a wasteful number, since it uses less digits than its factorization.

27243073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 27243073 is about 5219.4897260173. The cubic root of 27243073 is about 300.8975821795.

The spelling of 27243073 in words is "twenty-seven million, two hundred forty-three thousand, seventy-three".