16823982 has 32 divisors (see below), whose sum is σ = 40718592. Its totient is φ = 4523904.

The previous prime is 16823959. The next prime is 16823993. The reversal of 16823982 is 28932861.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16823982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11068 + ... + 12495.

It is an arithmetic number, because the mean of its divisors is an integer number (1272456).

Almost surely, 2^16823982 is an apocalyptic number.

16823982 is an abundant number, since it is smaller than the sum of its proper divisors (23894610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16823982 is a wasteful number, since it uses less digits than its factorization.

16823982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592.

The product of its digits is 41472, while the sum is 39.

The square root of 16823982 is about 4101.7047675326. The cubic root of 16823982 is about 256.2376435049.

The spelling of 16823982 in words is "sixteen million, eight hundred twenty-three thousand, nine hundred eighty-two".