12891704 has 24 divisors (see below), whose sum is σ = 28119240. Its totient is φ = 5524848.

The previous prime is 12891653. The next prime is 12891713. The reversal of 12891704 is 40719821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16052 + ... + 16835.

It is an arithmetic number, because the mean of its divisors is an integer number (1171635).

Almost surely, 2^12891704 is an apocalyptic number.

12891704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12891704 is an abundant number, since it is smaller than the sum of its proper divisors (15227536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12891704 is a wasteful number, since it uses less digits than its factorization.

12891704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32907 (or 32896 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12891704 is about 3590.5019147746. The cubic root of 12891704 is about 234.4787238438.

The spelling of 12891704 in words is "twelve million, eight hundred ninety-one thousand, seven hundred four".