12888775 has 12 divisors (see below), whose sum is σ = 16101400. Its totient is φ = 10234080.

The previous prime is 12888769. The next prime is 12888779. The reversal of 12888775 is 57788821.

It is a happy number.

12888775 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 12888775 - 2³ = 12888767 is a prime.

It is a super-2 number, since 2×12888775² = 332241042001250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1621 + ... + 5329.

Almost surely, 2^12888775 is an apocalyptic number.

12888775 is a deficient number, since it is larger than the sum of its proper divisors (3212625).

12888775 is a wasteful number, since it uses less digits than its factorization.

12888775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3853 counting only the distinct ones).

The product of its digits is 250880, while the sum is 46.

The square root of 12888775 is about 3590.0940099112. The cubic root of 12888775 is about 234.4609646140.

Adding to 12888775 its sum of digits (46), we get a palindrome (12888821).

The spelling of 12888775 in words is "twelve million, eight hundred eighty-eight thousand, seven hundred seventy-five".