16489563 has 8 divisors (see below), whose sum is σ = 22204176. Its totient is φ = 10884000.

The previous prime is 16489547. The next prime is 16489567. The reversal of 16489563 is 36598461.

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

It is not a de Polignac number, because 16489563 - 2⁴ = 16489547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16489567) 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, 26908 + ... + 27513.

It is an arithmetic number, because the mean of its divisors is an integer number (2775522).

Almost surely, 2^16489563 is an apocalyptic number.

16489563 is a deficient number, since it is larger than the sum of its proper divisors (5714613).

16489563 is a wasteful number, since it uses less digits than its factorization.

16489563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54525.

The product of its digits is 155520, while the sum is 42.

The square root of 16489563 is about 4060.7342932036. The cubic root of 16489563 is about 254.5284788965.

It can be divided in two parts, 1648 and 9563, that added together give a palindrome (11211).

The spelling of 16489563 in words is "sixteen million, four hundred eighty-nine thousand, five hundred sixty-three".