16805982 has 32 divisors (see below), whose sum is σ = 35108640. Its totient is φ = 5358080.

The previous prime is 16805981. The next prime is 16806007. The reversal of 16805982 is 28950861.

It is a self number, because there is not a number n which added to its sum of digits gives 16805982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16805981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12394 + ... + 13682.

It is an arithmetic number, because the mean of its divisors is an integer number (1097145).

Almost surely, 2^16805982 is an apocalyptic number.

16805982 is an abundant number, since it is smaller than the sum of its proper divisors (18302658).

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

16805982 is a wasteful number, since it uses less digits than its factorization.

16805982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 16805982 is about 4099.5099707160. The cubic root of 16805982 is about 256.1462279004.

The spelling of 16805982 in words is "sixteen million, eight hundred five thousand, nine hundred eighty-two".