27873238 has 4 divisors (see below), whose sum is σ = 41809860. Its totient is φ = 13936618.

The previous prime is 27873227. The next prime is 27873239. The reversal of 27873238 is 83237872.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 27873238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27873239) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968308 + ... + 6968311.

It is an arithmetic number, because the mean of its divisors is an integer number (10452465).

Almost surely, 2^27873238 is an apocalyptic number.

27873238 is a deficient number, since it is larger than the sum of its proper divisors (13936622).

27873238 is a wasteful number, since it uses less digits than its factorization.

27873238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13936621.

The product of its digits is 112896, while the sum is 40.

The square root of 27873238 is about 5279.5111516124. The cubic root of 27873238 is about 303.1999609559.

The spelling of 27873238 in words is "twenty-seven million, eight hundred seventy-three thousand, two hundred thirty-eight".