27886966 has 4 divisors (see below), whose sum is σ = 41830452. Its totient is φ = 13943482.

The previous prime is 27886939. The next prime is 27886967. The reversal of 27886966 is 66968872.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27886967) by changing a digit.

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 as a sum of consecutive naturals, namely, 6971740 + ... + 6971743.

It is an arithmetic number, because the mean of its divisors is an integer number (10457613).

Almost surely, 2^27886966 is an apocalyptic number.

27886966 is a deficient number, since it is larger than the sum of its proper divisors (13943486).

27886966 is a wasteful number, since it uses less digits than its factorization.

27886966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13943485.

The product of its digits is 1741824, while the sum is 52.

The square root of 27886966 is about 5280.8111119410. The cubic root of 27886966 is about 303.2497296733.

The spelling of 27886966 in words is "twenty-seven million, eight hundred eighty-six thousand, nine hundred sixty-six".