16446089 has 16 divisors (see below), whose sum is σ = 19616256. Its totient is φ = 13612800.

The previous prime is 16446083. The next prime is 16446091. The reversal of 16446089 is 98064461.

It is a cyclic number.

It is not a de Polignac number, because 16446089 - 2⁸ = 16445833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16446083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4379 + ... + 7215.

It is an arithmetic number, because the mean of its divisors is an integer number (1226016).

Almost surely, 2^16446089 is an apocalyptic number.

It is an amenable number.

16446089 is a deficient number, since it is larger than the sum of its proper divisors (3170167).

16446089 is a wasteful number, since it uses less digits than its factorization.

16446089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 16446089 is about 4055.3777875803. The cubic root of 16446089 is about 254.3045976893.

The spelling of 16446089 in words is "sixteen million, four hundred forty-six thousand, eighty-nine".