16002089 has 4 divisors (see below), whose sum is σ = 16697856. Its totient is φ = 15306324.

The previous prime is 16002067. The next prime is 16002101. The reversal of 16002089 is 98020061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98020061 = 89 ⋅1101349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16002089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16002059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347849 + ... + 347894.

It is an arithmetic number, because the mean of its divisors is an integer number (4174464).

Almost surely, 2^16002089 is an apocalyptic number.

It is an amenable number.

16002089 is a deficient number, since it is larger than the sum of its proper divisors (695767).

16002089 is an equidigital number, since it uses as much as digits as its factorization.

16002089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695766.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 16002089 is about 4000.2611164773. The cubic root of 16002089 is about 251.9951760645.

The spelling of 16002089 in words is "sixteen million, two thousand, eighty-nine".