16728633 has 16 divisors (see below), whose sum is σ = 25007040. Its totient is φ = 11051712.

The previous prime is 16728631. The next prime is 16728637. The reversal of 16728633 is 33682761.

It is a happy number.

16728633 is a `hidden beast` number, since 16 + 7 + 2 + 8 + 633 = 666.

It is not a de Polignac number, because 16728633 - 2¹ = 16728631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16728631) 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, 310 + ... + 5792.

It is an arithmetic number, because the mean of its divisors is an integer number (1562940).

Almost surely, 2^16728633 is an apocalyptic number.

It is an amenable number.

16728633 is a deficient number, since it is larger than the sum of its proper divisors (8278407).

16728633 is a wasteful number, since it uses less digits than its factorization.

16728633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605 (or 5599 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 16728633 is about 4090.0651584052. The cubic root of 16728633 is about 255.7526551784.

The spelling of 16728633 in words is "sixteen million, seven hundred twenty-eight thousand, six hundred thirty-three".