12947392 has 28 divisors (see below), whose sum is σ = 25959816. Its totient is φ = 6406400.

The previous prime is 12947381. The next prime is 12947401. The reversal of 12947392 is 29374921.

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 3 ways as a sum of consecutive naturals, for example, 5463 + ... + 7465.

Almost surely, 2^12947392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12947392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12979908).

12947392 is an abundant number, since it is smaller than the sum of its proper divisors (13012424).

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

12947392 is a wasteful number, since it uses less digits than its factorization.

12947392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2106 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 12947392 is about 3598.2484627941. The cubic root of 12947392 is about 234.8158629981.

The spelling of 12947392 in words is "twelve million, nine hundred forty-seven thousand, three hundred ninety-two".