16465689 has 24 divisors (see below), whose sum is σ = 24582272. Its totient is φ = 10614240.

The previous prime is 16465679. The next prime is 16465717. The reversal of 16465689 is 98656461.

It is not a de Polignac number, because 16465689 - 2¹¹ = 16463641 is a prime.

It is a super-3 number, since 3×16465689³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (16465679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60624 + ... + 60894.

Almost surely, 2^16465689 is an apocalyptic number.

It is an amenable number.

16465689 is a deficient number, since it is larger than the sum of its proper divisors (8116583).

16465689 is a wasteful number, since it uses less digits than its factorization.

16465689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 474 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 16465689 is about 4057.7936122972. The cubic root of 16465689 is about 254.4055820094.

The spelling of 16465689 in words is "sixteen million, four hundred sixty-five thousand, six hundred eighty-nine".