27841231 has 12 divisors (see below), whose sum is σ = 30802680. Its totient is φ = 24956160.

The previous prime is 27841217. The next prime is 27841237. The reversal of 27841231 is 13214872.

It is not a de Polignac number, because 27841231 - 2⁷ = 27841103 is a prime.

It is a super-2 number, since 2×27841231² = 1550268287190722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27841231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27841237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103365 + ... + 103633.

It is an arithmetic number, because the mean of its divisors is an integer number (2566890).

Almost surely, 2^27841231 is an apocalyptic number.

27841231 is a deficient number, since it is larger than the sum of its proper divisors (2961449).

27841231 is an equidigital number, since it uses as much as digits as its factorization.

27841231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 377 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 27841231 is about 5276.4790343561. The cubic root of 27841231 is about 303.0838610837.

The spelling of 27841231 in words is "twenty-seven million, eight hundred forty-one thousand, two hundred thirty-one".