12816988 has 6 divisors (see below), whose sum is σ = 22429736. Its totient is φ = 6408492.

The previous prime is 12816977. The next prime is 12816989. The reversal of 12816988 is 88961821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816989) by changing a digit.

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 as a sum of consecutive naturals, namely, 1602120 + ... + 1602127.

Almost surely, 2^12816988 is an apocalyptic number.

It is an amenable number.

12816988 is a deficient number, since it is larger than the sum of its proper divisors (9612748).

12816988 is a wasteful number, since it uses less digits than its factorization.

12816988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204251 (or 3204249 counting only the distinct ones).

The product of its digits is 55296, while the sum is 43.

The square root of 12816988 is about 3580.0821219631. The cubic root of 12816988 is about 234.0248591702.

The spelling of 12816988 in words is "twelve million, eight hundred sixteen thousand, nine hundred eighty-eight".