16389851 has 8 divisors (see below), whose sum is σ = 16599600. Its totient is φ = 16181728.

The previous prime is 16389833. The next prime is 16389883. The reversal of 16389851 is 15898361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16389851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16389799 and 16389808.

It is not an unprimeable number, because it can be changed into a prime (16389811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47060 + ... + 47406.

It is an arithmetic number, because the mean of its divisors is an integer number (2074950).

Almost surely, 2^16389851 is an apocalyptic number.

16389851 is a deficient number, since it is larger than the sum of its proper divisors (209749).

16389851 is a wasteful number, since it uses less digits than its factorization.

16389851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 51840, while the sum is 41.

The square root of 16389851 is about 4048.4380938826. The cubic root of 16389851 is about 254.0143987126.

The spelling of 16389851 in words is "sixteen million, three hundred eighty-nine thousand, eight hundred fifty-one".