27894243 has 8 divisors (see below), whose sum is σ = 40053328. Its totient is φ = 17165664.

The previous prime is 27894241. The next prime is 27894253. The reversal of 27894243 is 34249872.

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

It is not a de Polignac number, because 27894243 - 2¹ = 27894241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 715237 = 27894243 / (2 + 7 + 8 + 9 + 4 + 2 + 4 + 3).

It is the 5282-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27894241) by changing a digit.

It is a nontrivial repunit in base 5281.

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 7 ways as a sum of consecutive naturals, for example, 357580 + ... + 357657.

It is an arithmetic number, because the mean of its divisors is an integer number (5006666).

Almost surely, 2^27894243 is an apocalyptic number.

27894243 is a deficient number, since it is larger than the sum of its proper divisors (12159085).

27894243 is a wasteful number, since it uses less digits than its factorization.

27894243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715253.

The product of its digits is 96768, while the sum is 39.

The square root of 27894243 is about 5281.5000710026. The cubic root of 27894243 is about 303.2761046754.

The spelling of 27894243 in words is "twenty-seven million, eight hundred ninety-four thousand, two hundred forty-three".