12959856 has 240 divisors, whose sum is σ = 47663616. Its totient is φ = 3193344.

The previous prime is 12959819. The next prime is 12959861. The reversal of 12959856 is 65895921.

12959856 is a `hidden beast` number, since 1 + 2 + 9 + 598 + 56 = 666.

Its product of digits (194400) is a multiple of the sum of its prime factors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301371 + ... + 301413.

Almost surely, 2^12959856 is an apocalyptic number.

12959856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12959856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23831808).

12959856 is an abundant number, since it is smaller than the sum of its proper divisors (34703760).

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

12959856 is a wasteful number, since it uses less digits than its factorization.

12959856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 91 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 12959856 is about 3599.9799999444. The cubic root of 12959856 is about 234.8911884963.

The spelling of 12959856 in words is "twelve million, nine hundred fifty-nine thousand, eight hundred fifty-six".