12909696 has 32 divisors (see below), whose sum is σ = 34292400. Its totient is φ = 4303104.

The previous prime is 12909679. The next prime is 12909697. The reversal of 12909696 is 69690921.

It is a happy number.

12909696 is nontrivially palindromic in base 7.

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12909697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16426 + ... + 17193.

Almost surely, 2^12909696 is an apocalyptic number.

12909696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12909696 is an abundant number, since it is smaller than the sum of its proper divisors (21382704).

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

12909696 is an equidigital number, since it uses as much as digits as its factorization.

12909696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33636 (or 33624 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 12909696 is about 3593.0065404895. The cubic root of 12909696 is about 234.5877546883.

The spelling of 12909696 in words is "twelve million, nine hundred nine thousand, six hundred ninety-six".