16327081 has 2 divisors, whose sum is σ = 16327082. Its totient is φ = 16327080.

The previous prime is 16327067. The next prime is 16327093. The reversal of 16327081 is 18072361.

16327081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 6969600 = 3059^2 + 2640^2 .

It is a cyclic number.

It is not a de Polignac number, because 16327081 - 2¹¹ = 16325033 is a prime.

It is a super-2 number, since 2×16327081² = 533147147961122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16327681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8163540 + 8163541.

It is an arithmetic number, because the mean of its divisors is an integer number (8163541).

Almost surely, 2^16327081 is an apocalyptic number.

It is an amenable number.

16327081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16327081 is an equidigital number, since it uses as much as digits as its factorization.

16327081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 16327081 is about 4040.6782846448. The cubic root of 16327081 is about 253.6897083091.

The spelling of 16327081 in words is "sixteen million, three hundred twenty-seven thousand, eighty-one".