12788895 has 32 divisors (see below), whose sum is σ = 24145920. Its totient is φ = 5656320.

The previous prime is 12788891. The next prime is 12788933. The reversal of 12788895 is 59888721.

12788895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12788895 - 2² = 12788891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1291 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (754560).

Almost surely, 2^12788895 is an apocalyptic number.

12788895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12788895 is a deficient number, since it is larger than the sum of its proper divisors (11357025).

12788895 is a wasteful number, since it uses less digits than its factorization.

12788895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975.

The product of its digits is 322560, while the sum is 48.

The square root of 12788895 is about 3576.1564563089. The cubic root of 12788895 is about 233.8537511155.

The spelling of 12788895 in words is "twelve million, seven hundred eighty-eight thousand, eight hundred ninety-five".