16879639 has 8 divisors (see below), whose sum is σ = 19339040. Its totient is φ = 14432256.

The previous prime is 16879613. The next prime is 16879669. The reversal of 16879639 is 93697861.

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 16879639 - 2¹¹ = 16877591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16879592 and 16879601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16879609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (2417380).

Almost surely, 2^16879639 is an apocalyptic number.

16879639 is a deficient number, since it is larger than the sum of its proper divisors (2459401).

16879639 is an equidigital number, since it uses as much as digits as its factorization.

16879639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009.

The product of its digits is 489888, while the sum is 49.

The square root of 16879639 is about 4108.4837835873. The cubic root of 16879639 is about 256.5198937841.

The spelling of 16879639 in words is "sixteen million, eight hundred seventy-nine thousand, six hundred thirty-nine".