27198841 has 2 divisors, whose sum is σ = 27198842. Its totient is φ = 27198840.

The previous prime is 27198803. The next prime is 27198869. The reversal of 27198841 is 14889172.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16933225 + 10265616 = 4115^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 27198841 - 2⁷ = 27198713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27198794 and 27198803.

It is not a weakly prime, because it can be changed into another prime (27198881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13599420 + 13599421.

It is an arithmetic number, because the mean of its divisors is an integer number (13599421).

Almost surely, 2^27198841 is an apocalyptic number.

It is an amenable number.

27198841 is a deficient number, since it is larger than the sum of its proper divisors (1).

27198841 is an equidigital number, since it uses as much as digits as its factorization.

27198841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The square root of 27198841 is about 5215.2508089257. The cubic root of 27198841 is about 300.7346476557.

The spelling of 27198841 in words is "twenty-seven million, one hundred ninety-eight thousand, eight hundred forty-one".