12768895 has 8 divisors (see below), whose sum is σ = 15343920. Its totient is φ = 10200960.

The previous prime is 12768881. The next prime is 12768901. The reversal of 12768895 is 59886721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12768895 - 2⁹ = 12768383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3780 + ... + 6310.

It is an arithmetic number, because the mean of its divisors is an integer number (1917990).

Almost surely, 2^12768895 is an apocalyptic number.

12768895 is a deficient number, since it is larger than the sum of its proper divisors (2575025).

12768895 is a wasteful number, since it uses less digits than its factorization.

12768895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545.

The product of its digits is 241920, while the sum is 46.

The square root of 12768895 is about 3573.3590639621. The cubic root of 12768895 is about 233.7317829226.

It can be divided in two parts, 1 and 2768895, that added together give a square (2768896 = 1664²).

The spelling of 12768895 in words is "twelve million, seven hundred sixty-eight thousand, eight hundred ninety-five".