12899712 has 64 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 3684864.

The previous prime is 12899687. The next prime is 12899713. The reversal of 12899712 is 21799821.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899713) 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, 289 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (612000).

Almost surely, 2^12899712 is an apocalyptic number.

12899712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12899712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19584000).

12899712 is an abundant number, since it is smaller than the sum of its proper divisors (26268288).

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

12899712 is an equidigital number, since it uses as much as digits as its factorization.

12899712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823 (or 4811 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 12899712 is about 3591.6169060745. The cubic root of 12899712 is about 234.5272645425.

The spelling of 12899712 in words is "twelve million, eight hundred ninety-nine thousand, seven hundred twelve".