27988214 has 4 divisors (see below), whose sum is σ = 41982324. Its totient is φ = 13994106.

The previous prime is 27988189. The next prime is 27988223. The reversal of 27988214 is 41288972.

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

It is a congruent number.

It is an unprimeable number.

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, 6997052 + ... + 6997055.

It is an arithmetic number, because the mean of its divisors is an integer number (10495581).

Almost surely, 2^27988214 is an apocalyptic number.

27988214 is a deficient number, since it is larger than the sum of its proper divisors (13994110).

27988214 is a wasteful number, since it uses less digits than its factorization.

27988214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13994109.

The product of its digits is 64512, while the sum is 41.

The square root of 27988214 is about 5290.3888325907. The cubic root of 27988214 is about 303.6162849728.

The spelling of 27988214 in words is "twenty-seven million, nine hundred eighty-eight thousand, two hundred fourteen".