16679959 has 8 divisors (see below), whose sum is σ = 17500320. Its totient is φ = 15876000.

The previous prime is 16679951. The next prime is 16679977. The reversal of 16679959 is 95997661.

16679959 = 167² + 168² + ... + 379².

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 16679959 - 2³ = 16679951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16679951) 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 7 ways as a sum of consecutive naturals, for example, 1992 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (2187540).

Almost surely, 2^16679959 is an apocalyptic number.

16679959 is a deficient number, since it is larger than the sum of its proper divisors (820361).

16679959 is an equidigital number, since it uses as much as digits as its factorization.

16679959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201.

The product of its digits is 918540, while the sum is 52.

The square root of 16679959 is about 4084.1105518827. The cubic root of 16679959 is about 255.5043663558.

The spelling of 16679959 in words is "sixteen million, six hundred seventy-nine thousand, nine hundred fifty-nine".