16284389 has 8 divisors (see below), whose sum is σ = 17865120. Its totient is φ = 14720400.

The previous prime is 16284383. The next prime is 16284397. The reversal of 16284389 is 98348261.

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 16284389 - 2²⁰ = 15235813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16284383) 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, 2099 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (2233140).

Almost surely, 2^16284389 is an apocalyptic number.

It is an amenable number.

16284389 is a deficient number, since it is larger than the sum of its proper divisors (1580731).

16284389 is a wasteful number, since it uses less digits than its factorization.

16284389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8371.

The product of its digits is 82944, while the sum is 41.

The square root of 16284389 is about 4035.3920503465. The cubic root of 16284389 is about 253.4683996209.

The spelling of 16284389 in words is "sixteen million, two hundred eighty-four thousand, three hundred eighty-nine".