12896775 has 54 divisors (see below), whose sum is σ = 24412128. Its totient is φ = 6501600.

The previous prime is 12896773. The next prime is 12896797. The reversal of 12896775 is 57769821.

It is not a de Polignac number, because 12896775 - 2¹ = 12896773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12896775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12896773) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 299904 + ... + 299946.

Almost surely, 2^12896775 is an apocalyptic number.

12896775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12896775 is a deficient number, since it is larger than the sum of its proper divisors (11515353).

12896775 is a wasteful number, since it uses less digits than its factorization.

12896775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 82 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12896775 is about 3591.2080140254. The cubic root of 12896775 is about 234.5094641746.

The spelling of 12896775 in words is "twelve million, eight hundred ninety-six thousand, seven hundred seventy-five".