16671839 has 8 divisors (see below), whose sum is σ = 17573760. Its totient is φ = 15791776.

The previous prime is 16671827. The next prime is 16671841. The reversal of 16671839 is 93817661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16671839 - 2¹² = 16667743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16671796 and 16671805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16671899) 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, 3887 + ... + 6960.

It is an arithmetic number, because the mean of its divisors is an integer number (2196720).

Almost surely, 2^16671839 is an apocalyptic number.

16671839 is a deficient number, since it is larger than the sum of its proper divisors (901921).

16671839 is a wasteful number, since it uses less digits than its factorization.

16671839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929.

The product of its digits is 54432, while the sum is 41.

The square root of 16671839 is about 4083.1163343701. The cubic root of 16671839 is about 255.4628987836.

The spelling of 16671839 in words is "sixteen million, six hundred seventy-one thousand, eight hundred thirty-nine".