27138671 has 8 divisors (see below), whose sum is σ = 32016384. Its totient is φ = 22511160.

The previous prime is 27138667. The next prime is 27138691. The reversal of 27138671 is 17683172.

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

It is not a de Polignac number, because 27138671 - 2² = 27138667 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 (27138611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62315 + ... + 62748.

It is an arithmetic number, because the mean of its divisors is an integer number (4002048).

Almost surely, 2^27138671 is an apocalyptic number.

27138671 is a deficient number, since it is larger than the sum of its proper divisors (4877713).

27138671 is a wasteful number, since it uses less digits than its factorization.

27138671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125101.

The product of its digits is 14112, while the sum is 35.

The square root of 27138671 is about 5209.4789566712. The cubic root of 27138671 is about 300.5127195261.

The spelling of 27138671 in words is "twenty-seven million, one hundred thirty-eight thousand, six hundred seventy-one".