12960387 has 48 divisors (see below), whose sum is σ = 21805056. Its totient is φ = 7344000.

The previous prime is 12960383. The next prime is 12960401. The reversal of 12960387 is 78306921.

It is not a de Polignac number, because 12960387 - 2² = 12960383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12960383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125778 + ... + 125880.

It is an arithmetic number, because the mean of its divisors is an integer number (454272).

Almost surely, 2^12960387 is an apocalyptic number.

12960387 is a deficient number, since it is larger than the sum of its proper divisors (8844669).

12960387 is a wasteful number, since it uses less digits than its factorization.

12960387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12960387 is about 3600.0537495987. The cubic root of 12960387 is about 234.8943964928.

It can be divided in two parts, 129 and 60387, that added together give a square (60516 = 246²).

The spelling of 12960387 in words is "twelve million, nine hundred sixty thousand, three hundred eighty-seven".