12971768 has 8 divisors (see below), whose sum is σ = 24322080. Its totient is φ = 6485880.

The previous prime is 12971743. The next prime is 12971797. The reversal of 12971768 is 86717921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810728 + ... + 810743.

It is an arithmetic number, because the mean of its divisors is an integer number (3040260).

Almost surely, 2^12971768 is an apocalyptic number.

It is an amenable number.

12971768 is a deficient number, since it is larger than the sum of its proper divisors (11350312).

12971768 is a wasteful number, since it uses less digits than its factorization.

12971768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621477 (or 1621473 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 12971768 is about 3601.6340735838. The cubic root of 12971768 is about 234.9631328917.

The spelling of 12971768 in words is "twelve million, nine hundred seventy-one thousand, seven hundred sixty-eight".