27312343 has 4 divisors (see below), whose sum is σ = 27328840. Its totient is φ = 27295848.

The previous prime is 27312317. The next prime is 27312347. The reversal of 27312343 is 34321372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27312343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312347) 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, 5448 + ... + 9181.

It is an arithmetic number, because the mean of its divisors is an integer number (6832210).

Almost surely, 2^27312343 is an apocalyptic number.

27312343 is a deficient number, since it is larger than the sum of its proper divisors (16497).

27312343 is a wasteful number, since it uses less digits than its factorization.

27312343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16496.

The product of its digits is 3024, while the sum is 25.

The square root of 27312343 is about 5226.1212194131. The cubic root of 27312343 is about 301.1523935548.

The spelling of 27312343 in words is "twenty-seven million, three hundred twelve thousand, three hundred forty-three".