16998839 has 8 divisors (see below), whose sum is σ = 19970832. Its totient is φ = 14264640.

The previous prime is 16998833. The next prime is 16998857. The reversal of 16998839 is 93889961.

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

It is not a de Polignac number, because 16998839 - 2²⁴ = 221623 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 (16998833) 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, 59294 + ... + 59579.

It is an arithmetic number, because the mean of its divisors is an integer number (2496354).

Almost surely, 2^16998839 is an apocalyptic number.

16998839 is a deficient number, since it is larger than the sum of its proper divisors (2971993).

16998839 is a wasteful number, since it uses less digits than its factorization.

16998839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118897.

The product of its digits is 839808, while the sum is 53.

The square root of 16998839 is about 4122.9648312834. The cubic root of 16998839 is about 257.1223054857.

The spelling of 16998839 in words is "sixteen million, nine hundred ninety-eight thousand, eight hundred thirty-nine".