12787808 has 48 divisors (see below), whose sum is σ = 29093904. Its totient is φ = 5468160.

The previous prime is 12787799. The next prime is 12787823. The reversal of 12787808 is 80878721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4916 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (606123).

Almost surely, 2^12787808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12787808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14546952).

12787808 is an abundant number, since it is smaller than the sum of its proper divisors (16306096).

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

12787808 is a wasteful number, since it uses less digits than its factorization.

12787808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 12787808 is about 3576.0044742701. The cubic root of 12787808 is about 233.8471254133.

The spelling of 12787808 in words is "twelve million, seven hundred eighty-seven thousand, eight hundred eight".