27324991 has 2 divisors, whose sum is σ = 27324992. Its totient is φ = 27324990.

The previous prime is 27324977. The next prime is 27325003. The reversal of 27324991 is 19942372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27324991 - 2⁵ = 27324959 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27324991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27324091) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13662495 + 13662496.

It is an arithmetic number, because the mean of its divisors is an integer number (13662496).

Almost surely, 2^27324991 is an apocalyptic number.

27324991 is a deficient number, since it is larger than the sum of its proper divisors (1).

27324991 is an equidigital number, since it uses as much as digits as its factorization.

27324991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 27324991 is about 5227.3311546142. The cubic root of 27324991 is about 301.1988730002.

The spelling of 27324991 in words is "twenty-seven million, three hundred twenty-four thousand, nine hundred ninety-one".