16798993 has 8 divisors (see below), whose sum is σ = 18095616. Its totient is φ = 15549600.

The previous prime is 16798987. The next prime is 16799051. The reversal of 16798993 is 39989761.

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

It is not a de Polignac number, because 16798993 - 2⁵ = 16798961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16798993.

It is not an unprimeable number, because it can be changed into a prime (16798963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11068 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (2261952).

Almost surely, 2^16798993 is an apocalyptic number.

It is an amenable number.

16798993 is a deficient number, since it is larger than the sum of its proper divisors (1296623).

16798993 is a wasteful number, since it uses less digits than its factorization.

16798993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23615.

The product of its digits is 734832, while the sum is 52.

The square root of 16798993 is about 4098.6574631213. The cubic root of 16798993 is about 256.1107156603.

The spelling of 16798993 in words is "sixteen million, seven hundred ninety-eight thousand, nine hundred ninety-three".