16386861 has 8 divisors (see below), whose sum is σ = 23134464. Its totient is φ = 10281920.

The previous prime is 16386859. The next prime is 16386869. The reversal of 16386861 is 16868361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16386861 - 2¹ = 16386859 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16386869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160605 + ... + 160706.

It is an arithmetic number, because the mean of its divisors is an integer number (2891808).

Almost surely, 2^16386861 is an apocalyptic number.

It is an amenable number.

16386861 is a deficient number, since it is larger than the sum of its proper divisors (6747603).

16386861 is a wasteful number, since it uses less digits than its factorization.

16386861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321331.

The product of its digits is 41472, while the sum is 39.

The square root of 16386861 is about 4048.0687988225. The cubic root of 16386861 is about 253.9989511602.

The spelling of 16386861 in words is "sixteen million, three hundred eighty-six thousand, eight hundred sixty-one".