16020889 has 8 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 15499440.

The previous prime is 16020881. The next prime is 16020911. The reversal of 16020889 is 98802061.

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 16020889 - 2³ = 16020881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16020881) 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, 5934 + ... + 8200.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^16020889 is an apocalyptic number.

It is an amenable number.

16020889 is a deficient number, since it is larger than the sum of its proper divisors (526439).

16020889 is a wasteful number, since it uses less digits than its factorization.

16020889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 16020889 is about 4002.6102733092. The cubic root of 16020889 is about 252.0938226691.

The spelling of 16020889 in words is "sixteen million, twenty thousand, eight hundred eighty-nine".