27021218 has 8 divisors (see below), whose sum is σ = 46322112. Its totient is φ = 11580516.

The previous prime is 27021217. The next prime is 27021221. The reversal of 27021218 is 81212072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27021193 and 27021202.

It is not an unprimeable number, because it can be changed into a prime (27021217) 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 in 3 ways as a sum of consecutive naturals, for example, 965030 + ... + 965057.

It is an arithmetic number, because the mean of its divisors is an integer number (5790264).

Almost surely, 2^27021218 is an apocalyptic number.

27021218 is a deficient number, since it is larger than the sum of its proper divisors (19300894).

27021218 is a wasteful number, since it uses less digits than its factorization.

27021218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930096.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 27021218 is about 5198.1937247471. The cubic root of 27021218 is about 300.0785646087.

The spelling of 27021218 in words is "twenty-seven million, twenty-one thousand, two hundred eighteen".