12855850 has 48 divisors (see below), whose sum is σ = 28533888. Its totient is φ = 4213440.

The previous prime is 12855833. The next prime is 12855851. The reversal of 12855850 is 5855821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12855851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7252 + ... + 8848.

It is an arithmetic number, because the mean of its divisors is an integer number (594456).

Almost surely, 2^12855850 is an apocalyptic number.

12855850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12855850 is an abundant number, since it is smaller than the sum of its proper divisors (15678038).

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

12855850 is a wasteful number, since it uses less digits than its factorization.

12855850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 12855850 is about 3585.5055431557. The cubic root of 12855850 is about 234.2611470727.

The spelling of 12855850 in words is "twelve million, eight hundred fifty-five thousand, eight hundred fifty".