81827327 has 2 divisors, whose sum is σ = 81827328. Its totient is φ = 81827326.

The previous prime is 81827303. The next prime is 81827351. The reversal of 81827327 is 72372818.

It is a balanced prime because it is at equal distance from previous prime (81827303) and next prime (81827351).

It is a cyclic number.

It is not a de Polignac number, because 81827327 - 2²⁶ = 14718463 is a prime.

It is a super-2 number, since 2×81827327² = 13391422887929858, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81823327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40913663 + 40913664.

It is an arithmetic number, because the mean of its divisors is an integer number (40913664).

Almost surely, 2^81827327 is an apocalyptic number.

81827327 is a deficient number, since it is larger than the sum of its proper divisors (1).

81827327 is an equidigital number, since it uses as much as digits as its factorization.

81827327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 81827327 is about 9045.8458421532. The cubic root of 81827327 is about 434.1429852301.

The spelling of 81827327 in words is "eighty-one million, eight hundred twenty-seven thousand, three hundred twenty-seven".