12987960 has 32 divisors (see below), whose sum is σ = 38964240. Its totient is φ = 3463424.

The previous prime is 12987917. The next prime is 12987967. The reversal of 12987960 is 6978921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987967) 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 in 7 ways as a sum of consecutive naturals, for example, 53997 + ... + 54236.

Almost surely, 2^12987960 is an apocalyptic number.

12987960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12987960 is an abundant number, since it is smaller than the sum of its proper divisors (25976280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12987960 is a wasteful number, since it uses less digits than its factorization.

12987960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108247 (or 108243 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12987960 is about 3603.8812411066. The cubic root of 12987960 is about 235.0608564286.

The spelling of 12987960 in words is "twelve million, nine hundred eighty-seven thousand, nine hundred sixty".