27712513 has 4 divisors (see below), whose sum is σ = 27751360. Its totient is φ = 27673668.

The previous prime is 27712471. The next prime is 27712523. The reversal of 27712513 is 31521772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27712513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27712523) 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, 18333 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (6937840).

Almost surely, 2^27712513 is an apocalyptic number.

It is an amenable number.

27712513 is a deficient number, since it is larger than the sum of its proper divisors (38847).

27712513 is an equidigital number, since it uses as much as digits as its factorization.

27712513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38846.

The product of its digits is 2940, while the sum is 28.

The square root of 27712513 is about 5264.2675653884. The cubic root of 27712513 is about 302.6160581922.

The spelling of 27712513 in words is "twenty-seven million, seven hundred twelve thousand, five hundred thirteen".