12997372 has 6 divisors (see below), whose sum is σ = 22745408. Its totient is φ = 6498684.

The previous prime is 12997357. The next prime is 12997379. The reversal of 12997372 is 27379921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997379) 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 as a sum of consecutive naturals, namely, 1624668 + ... + 1624675.

Almost surely, 2^12997372 is an apocalyptic number.

It is an amenable number.

12997372 is a deficient number, since it is larger than the sum of its proper divisors (9748036).

12997372 is a wasteful number, since it uses less digits than its factorization.

12997372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249347 (or 3249345 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 12997372 is about 3605.1868190151. The cubic root of 12997372 is about 235.1176233259.

The spelling of 12997372 in words is "twelve million, nine hundred ninety-seven thousand, three hundred seventy-two".