12807882 has 40 divisors (see below), whose sum is σ = 28928196. Its totient is φ = 4235328.

The previous prime is 12807871. The next prime is 12807943. The reversal of 12807882 is 28870821.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 2368521 = 3231^2 + 1539^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27798 + ... + 28254.

Almost surely, 2^12807882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12807882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14464098).

12807882 is an abundant number, since it is smaller than the sum of its proper divisors (16120314).

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

12807882 is a wasteful number, since it uses less digits than its factorization.

12807882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 12807882 is about 3578.8101374619. The cubic root of 12807882 is about 233.9694240128.

It can be divided in two parts, 12807 and 882, that added together give a square (13689 = 117²).

The spelling of 12807882 in words is "twelve million, eight hundred seven thousand, eight hundred eighty-two".