16679817 has 64 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 8467200.

The previous prime is 16679809. The next prime is 16679821. The reversal of 16679817 is 71897661.

It is not a de Polignac number, because 16679817 - 2³ = 16679809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16679827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147553 + ... + 147665.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^16679817 is an apocalyptic number.

It is an amenable number.

16679817 is a deficient number, since it is larger than the sum of its proper divisors (14838903).

16679817 is a wasteful number, since it uses less digits than its factorization.

16679817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 205 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 16679817 is about 4084.0931673996. The cubic root of 16679817 is about 255.5036412996.

The spelling of 16679817 in words is "sixteen million, six hundred seventy-nine thousand, eight hundred seventeen".