12986850 has 24 divisors (see below), whose sum is σ = 32207760. Its totient is φ = 3463120.

The previous prime is 12986849. The next prime is 12986863. The reversal of 12986850 is 5868921.

It is a junction number, because it is equal to n+sod(n) for n = 12986799 and 12986808.

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 11 ways as a sum of consecutive naturals, for example, 43140 + ... + 43439.

It is an arithmetic number, because the mean of its divisors is an integer number (1341990).

Almost surely, 2^12986850 is an apocalyptic number.

12986850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12986850 is an abundant number, since it is smaller than the sum of its proper divisors (19220910).

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

12986850 is a wasteful number, since it uses less digits than its factorization.

12986850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86594 (or 86589 counting only the distinct ones).

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

The square root of 12986850 is about 3603.7272371810. The cubic root of 12986850 is about 235.0541598423.

The spelling of 12986850 in words is "twelve million, nine hundred eighty-six thousand, eight hundred fifty".