16845712 has 20 divisors (see below), whose sum is σ = 35149660. Its totient is φ = 7774848.

The previous prime is 16845707. The next prime is 16845713. The reversal of 16845712 is 21754861.

It can be written as a sum of positive squares in 2 ways, for example, as 9960336 + 6885376 = 3156^2 + 2624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845713) 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 3 ways as a sum of consecutive naturals, for example, 40287 + ... + 40702.

It is an arithmetic number, because the mean of its divisors is an integer number (1757483).

Almost surely, 2^16845712 is an apocalyptic number.

It is an amenable number.

16845712 is an abundant number, since it is smaller than the sum of its proper divisors (18303948).

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

16845712 is a wasteful number, since it uses less digits than its factorization.

16845712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81010 (or 81004 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 16845712 is about 4104.3528113455. The cubic root of 16845712 is about 256.3479156245.

It can be divided in two parts, 1684 and 5712, that added together give a square (7396 = 86²).

The spelling of 16845712 in words is "sixteen million, eight hundred forty-five thousand, seven hundred twelve".