27117387 has 12 divisors (see below), whose sum is σ = 42730584. Its totient is φ = 16434720.

The previous prime is 27117353. The next prime is 27117457. The reversal of 27117387 is 78371172.

It is a happy number.

27117387 is a `hidden beast` number, since 271 + 1 + 7 + 387 = 666.

It is not a de Polignac number, because 27117387 - 2¹⁶ = 27051851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27117317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136858 + ... + 137055.

It is an arithmetic number, because the mean of its divisors is an integer number (3560882).

Almost surely, 2^27117387 is an apocalyptic number.

27117387 is a deficient number, since it is larger than the sum of its proper divisors (15613197).

27117387 is a wasteful number, since it uses less digits than its factorization.

27117387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273930 (or 273927 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The square root of 27117387 is about 5207.4357413222. The cubic root of 27117387 is about 300.4341381106.

The spelling of 27117387 in words is "twenty-seven million, one hundred seventeen thousand, three hundred eighty-seven".