12947764 has 12 divisors (see below), whose sum is σ = 22698144. Its totient is φ = 6462584.

The previous prime is 12947731. The next prime is 12947771. The reversal of 12947764 is 46774921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (1891512).

Almost surely, 2^12947764 is an apocalyptic number.

It is an amenable number.

12947764 is a deficient number, since it is larger than the sum of its proper divisors (9750380).

12947764 is a wasteful number, since it uses less digits than its factorization.

12947764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654 (or 5652 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 12947764 is about 3598.3001542395. The cubic root of 12947764 is about 234.8181118593.

The spelling of 12947764 in words is "twelve million, nine hundred forty-seven thousand, seven hundred sixty-four".