27712138 has 8 divisors (see below), whose sum is σ = 42188832. Its totient is φ = 13649196.

The previous prime is 27712129. The next prime is 27712141. The reversal of 27712138 is 83121772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 103270 + ... + 103537.

It is an arithmetic number, because the mean of its divisors is an integer number (5273604).

Almost surely, 2^27712138 is an apocalyptic number.

27712138 is a deficient number, since it is larger than the sum of its proper divisors (14476694).

27712138 is a wasteful number, since it uses less digits than its factorization.

27712138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206876.

The product of its digits is 4704, while the sum is 31.

The square root of 27712138 is about 5264.2319477774. The cubic root of 27712138 is about 302.6146932068.

The spelling of 27712138 in words is "twenty-seven million, seven hundred twelve thousand, one hundred thirty-eight".