16384691 has 2 divisors, whose sum is σ = 16384692. Its totient is φ = 16384690.

The previous prime is 16384639. The next prime is 16384699. The reversal of 16384691 is 19648361.

16384691 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16384691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16384699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8192345 + 8192346.

It is an arithmetic number, because the mean of its divisors is an integer number (8192346).

Almost surely, 2^16384691 is an apocalyptic number.

16384691 is a deficient number, since it is larger than the sum of its proper divisors (1).

16384691 is an equidigital number, since it uses as much as digits as its factorization.

16384691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 16384691 is about 4047.8007609071. The cubic root of 16384691 is about 253.9877388836.

The spelling of 16384691 in words is "sixteen million, three hundred eighty-four thousand, six hundred ninety-one".