16386761 has 2 divisors, whose sum is σ = 16386762. Its totient is φ = 16386760.

The previous prime is 16386751. The next prime is 16386763. The reversal of 16386761 is 16768361.

16386761 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., 8791225 + 7595536 = 2965^2 + 2756^2 .

It is an emirp because it is prime and its reverse (16768361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16386761 - 2¹⁸ = 16124617 is a prime.

It is a super-2 number, since 2×16386761² = 537051872142242, which contains 22 as substring.

Together with 16386763, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (16386763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8193380 + 8193381.

It is an arithmetic number, because the mean of its divisors is an integer number (8193381).

Almost surely, 2^16386761 is an apocalyptic number.

It is an amenable number.

16386761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16386761 is an equidigital number, since it uses as much as digits as its factorization.

16386761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 16386761 is about 4048.0564472349. The cubic root of 16386761 is about 253.9984344872.

The spelling of 16386761 in words is "sixteen million, three hundred eighty-six thousand, seven hundred sixty-one".