27796018 has 4 divisors (see below), whose sum is σ = 41694030. Its totient is φ = 13898008.

The previous prime is 27795967. The next prime is 27796019. The reversal of 27796018 is 81069772.

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

It can be written as a sum of positive squares in only one way, i.e., 13935289 + 13860729 = 3733^2 + 3723^2 .

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 not an unprimeable number, because it can be changed into a prime (27796019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949003 + ... + 6949006.

Almost surely, 2^27796018 is an apocalyptic number.

27796018 is a deficient number, since it is larger than the sum of its proper divisors (13898012).

27796018 is a wasteful number, since it uses less digits than its factorization.

27796018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898011.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 27796018 is about 5272.1929023889. The cubic root of 27796018 is about 302.9197070012.

The spelling of 27796018 in words is "twenty-seven million, seven hundred ninety-six thousand, eighteen".