27973871 has 8 divisors (see below), whose sum is σ = 29673600. Its totient is φ = 26296920.

The previous prime is 27973837. The next prime is 27973879. The reversal of 27973871 is 17837972.

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 27973871 - 2¹⁸ = 27711727 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 (27973879) 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, 3131 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (3709200).

Almost surely, 2^27973871 is an apocalyptic number.

27973871 is a deficient number, since it is larger than the sum of its proper divisors (1699729).

27973871 is a wasteful number, since it uses less digits than its factorization.

27973871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389.

The product of its digits is 148176, while the sum is 44.

The square root of 27973871 is about 5289.0330874367. The cubic root of 27973871 is about 303.5644117989.

The spelling of 27973871 in words is "twenty-seven million, nine hundred seventy-three thousand, eight hundred seventy-one".