27693887 has 8 divisors (see below), whose sum is σ = 31394160. Its totient is φ = 24217920.

The previous prime is 27693877. The next prime is 27693889. The reversal of 27693887 is 78839672.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27693887 - 2⁶ = 27693823 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 (27693889) 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, 55814 + ... + 56307.

It is an arithmetic number, because the mean of its divisors is an integer number (3924270).

Almost surely, 2^27693887 is an apocalyptic number.

27693887 is a deficient number, since it is larger than the sum of its proper divisors (3700273).

27693887 is a wasteful number, since it uses less digits than its factorization.

27693887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112153.

The product of its digits is 1016064, while the sum is 50.

The square root of 27693887 is about 5262.4981710211. The cubic root of 27693887 is about 302.5482453842.

The spelling of 27693887 in words is "twenty-seven million, six hundred ninety-three thousand, eight hundred eighty-seven".