12888947 has 8 divisors (see below), whose sum is σ = 13543200. Its totient is φ = 12242560.

The previous prime is 12888943. The next prime is 12888971. The reversal of 12888947 is 74988821.

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

It is a cyclic number.

It is not a de Polignac number, because 12888947 - 2² = 12888943 is a prime.

It is a super-4 number, since 4×12888947⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12888943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900).

Almost surely, 2^12888947 is an apocalyptic number.

12888947 is a deficient number, since it is larger than the sum of its proper divisors (654253).

12888947 is a wasteful number, since it uses less digits than its factorization.

12888947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933.

The product of its digits is 258048, while the sum is 47.

The square root of 12888947 is about 3590.1179646357. The cubic root of 12888947 is about 234.4620075656.

The spelling of 12888947 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred forty-seven".