12988323 has 16 divisors (see below), whose sum is σ = 20374560. Its totient is φ = 8149248.

The previous prime is 12988301. The next prime is 12988361. The reversal of 12988323 is 32388921.

It is a happy number.

It is not a de Polignac number, because 12988323 - 2⁵ = 12988291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12988363) 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 15 ways as a sum of consecutive naturals, for example, 13690 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (1273410).

Almost surely, 2^12988323 is an apocalyptic number.

12988323 is a deficient number, since it is larger than the sum of its proper divisors (7386237).

12988323 is a wasteful number, since it uses less digits than its factorization.

12988323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28323 (or 28317 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 12988323 is about 3603.9316031246. The cubic root of 12988323 is about 235.0630463105.

The spelling of 12988323 in words is "twelve million, nine hundred eighty-eight thousand, three hundred twenty-three".