12852891 has 16 divisors (see below), whose sum is σ = 19305120. Its totient is φ = 8449920.

The previous prime is 12852881. The next prime is 12852893. The reversal of 12852891 is 19825821.

12852891 is a `hidden beast` number, since 128 + 528 + 9 + 1 = 666.

12852891 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12852891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12852893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (1206570).

Almost surely, 2^12852891 is an apocalyptic number.

12852891 is a deficient number, since it is larger than the sum of its proper divisors (6452229).

12852891 is an equidigital number, since it uses as much as digits as its factorization.

12852891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603 (or 6597 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12852891 is about 3585.0928858260. The cubic root of 12852891 is about 234.2431725858.

The spelling of 12852891 in words is "twelve million, eight hundred fifty-two thousand, eight hundred ninety-one".