27132643 has 2 divisors, whose sum is σ = 27132644. Its totient is φ = 27132642.

The previous prime is 27132631. The next prime is 27132649. The reversal of 27132643 is 34623172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27132643 is a prime.

It is not a weakly prime, because it can be changed into another prime (27132649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13566321 + 13566322.

It is an arithmetic number, because the mean of its divisors is an integer number (13566322).

Almost surely, 2^27132643 is an apocalyptic number.

27132643 is a deficient number, since it is larger than the sum of its proper divisors (1).

27132643 is an equidigital number, since it uses as much as digits as its factorization.

27132643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 28.

The square root of 27132643 is about 5208.9003638004. The cubic root of 27132643 is about 300.4904680703.

It can be divided in two parts, 2713 and 2643, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 27132643 in words is "twenty-seven million, one hundred thirty-two thousand, six hundred forty-three".