12961716 has 12 divisors (see below), whose sum is σ = 30244032. Its totient is φ = 4320568.

The previous prime is 12961709. The next prime is 12961717. The reversal of 12961716 is 61716921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540060 + ... + 540083.

It is an arithmetic number, because the mean of its divisors is an integer number (2520336).

Almost surely, 2^12961716 is an apocalyptic number.

It is an amenable number.

12961716 is an abundant number, since it is smaller than the sum of its proper divisors (17282316).

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

12961716 is a wasteful number, since it uses less digits than its factorization.

12961716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080150 (or 1080148 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 12961716 is about 3600.2383254446. The cubic root of 12961716 is about 234.9024251621.

The spelling of 12961716 in words is "twelve million, nine hundred sixty-one thousand, seven hundred sixteen".