27984198 has 16 divisors (see below), whose sum is σ = 61056576. Its totient is φ = 8480040.

The previous prime is 27984179. The next prime is 27984221. The reversal of 27984198 is 89148972.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211936 + ... + 212067.

It is an arithmetic number, because the mean of its divisors is an integer number (3816036).

Almost surely, 2^27984198 is an apocalyptic number.

27984198 is an abundant number, since it is smaller than the sum of its proper divisors (33072378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27984198 is a wasteful number, since it uses less digits than its factorization.

27984198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424019.

The product of its digits is 290304, while the sum is 48.

The square root of 27984198 is about 5290.0092627518. The cubic root of 27984198 is about 303.6017624155.

It can be divided in two parts, 27984 and 198, that added together give a palindrome (28182).

The spelling of 27984198 in words is "twenty-seven million, nine hundred eighty-four thousand, one hundred ninety-eight".