12884691 has 8 divisors (see below), whose sum is σ = 18190224. Its totient is φ = 8084480.

The previous prime is 12884689. The next prime is 12884699. The reversal of 12884691 is 19648821.

12884691 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 12884691 - 2¹ = 12884689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12884699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126270 + ... + 126371.

It is an arithmetic number, because the mean of its divisors is an integer number (2273778).

Almost surely, 2^12884691 is an apocalyptic number.

12884691 is a deficient number, since it is larger than the sum of its proper divisors (5305533).

12884691 is a wasteful number, since it uses less digits than its factorization.

12884691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252661.

The product of its digits is 27648, while the sum is 39.

The square root of 12884691 is about 3589.5251775130. The cubic root of 12884691 is about 234.4361978503.

The spelling of 12884691 in words is "twelve million, eight hundred eighty-four thousand, six hundred ninety-one".