12957988 has 12 divisors (see below), whose sum is σ = 22747312. Its totient is φ = 6458760.

The previous prime is 12957953. The next prime is 12957991. The reversal of 12957988 is 88975921.

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, 3570 + ... + 6217.

Almost surely, 2^12957988 is an apocalyptic number.

It is an amenable number.

12957988 is a deficient number, since it is larger than the sum of its proper divisors (9789324).

12957988 is a wasteful number, since it uses less digits than its factorization.

12957988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122 (or 10120 counting only the distinct ones).

The product of its digits is 362880, while the sum is 49.

The square root of 12957988 is about 3599.7205447090. The cubic root of 12957988 is about 234.8799024187.

The spelling of 12957988 in words is "twelve million, nine hundred fifty-seven thousand, nine hundred eighty-eight".