12888761 has 4 divisors (see below), whose sum is σ = 12900132. Its totient is φ = 12877392.

The previous prime is 12888749. The next prime is 12888767. The reversal of 12888761 is 16788821.

12888761 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7529536 + 5359225 = 2744^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 12888761 - 2¹⁰ = 12887737 is a prime.

It is a super-2 number, since 2×12888761² = 332240320230242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12888767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3770 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (3225033).

Almost surely, 2^12888761 is an apocalyptic number.

It is an amenable number.

12888761 is a deficient number, since it is larger than the sum of its proper divisors (11371).

12888761 is a wasteful number, since it uses less digits than its factorization.

12888761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11370.

The product of its digits is 43008, while the sum is 41.

The square root of 12888761 is about 3590.0920601010. The cubic root of 12888761 is about 234.4608797222.

The spelling of 12888761 in words is "twelve million, eight hundred eighty-eight thousand, seven hundred sixty-one".