27855238 has 4 divisors (see below), whose sum is σ = 41782860. Its totient is φ = 13927618.

The previous prime is 27855221. The next prime is 27855239. The reversal of 27855238 is 83255872.

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 27855238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27855239) 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, 6963808 + ... + 6963811.

It is an arithmetic number, because the mean of its divisors is an integer number (10445715).

Almost surely, 2^27855238 is an apocalyptic number.

27855238 is a deficient number, since it is larger than the sum of its proper divisors (13927622).

27855238 is a wasteful number, since it uses less digits than its factorization.

27855238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927621.

The product of its digits is 134400, while the sum is 40.

The square root of 27855238 is about 5277.8061730230. The cubic root of 27855238 is about 303.1346800041.

The spelling of 27855238 in words is "twenty-seven million, eight hundred fifty-five thousand, two hundred thirty-eight".