12803850 has 72 divisors (see below), whose sum is σ = 35375340. Its totient is φ = 3317760.

The previous prime is 12803803. The next prime is 12803851. The reversal of 12803850 is 5830821.

It is a happy number.

12803850 is a `hidden beast` number, since 1 + 280 + 385 + 0 = 666.

12803850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6796449 + 6007401 = 2607^2 + 2451^2 .

It is not an unprimeable number, because it can be changed into a prime (12803851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16266 + ... + 17034.

Almost surely, 2^12803850 is an apocalyptic number.

12803850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12803850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17687670).

12803850 is an abundant number, since it is smaller than the sum of its proper divisors (22571490).

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

12803850 is a wasteful number, since it uses less digits than its factorization.

12803850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12803850 is about 3578.2467774037. The cubic root of 12803850 is about 233.9448697650.

The spelling of 12803850 in words is "twelve million, eight hundred three thousand, eight hundred fifty".