27221198 has 8 divisors (see below), whose sum is σ = 42239880. Its totient is φ = 13141240.

The previous prime is 27221197. The next prime is 27221209. The reversal of 27221198 is 89112272.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27221197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234608 + ... + 234723.

It is an arithmetic number, because the mean of its divisors is an integer number (5279985).

Almost surely, 2^27221198 is an apocalyptic number.

27221198 is a deficient number, since it is larger than the sum of its proper divisors (15018682).

27221198 is a wasteful number, since it uses less digits than its factorization.

27221198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469362.

The product of its digits is 4032, while the sum is 32.

The square root of 27221198 is about 5217.3937938400. The cubic root of 27221198 is about 300.8170247338.

The spelling of 27221198 in words is "twenty-seven million, two hundred twenty-one thousand, one hundred ninety-eight".