12887760 has 40 divisors (see below), whose sum is σ = 39952800. Its totient is φ = 3436672.

The previous prime is 12887759. The next prime is 12887761. The reversal of 12887760 is 6778821.

It is an interprime number because it is at equal distance from previous prime (12887759) and next prime (12887761).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26610 + ... + 27089.

It is an arithmetic number, because the mean of its divisors is an integer number (998820).

Almost surely, 2^12887760 is an apocalyptic number.

12887760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12887760 is an abundant number, since it is smaller than the sum of its proper divisors (27065040).

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

12887760 is a wasteful number, since it uses less digits than its factorization.

12887760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53715 (or 53709 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 12887760 is about 3589.9526459272. The cubic root of 12887760 is about 234.4548097977.

The spelling of 12887760 in words is "twelve million, eight hundred eighty-seven thousand, seven hundred sixty".