12487864 has 32 divisors (see below), whose sum is σ = 25506000. Its totient is φ = 5709312.

The previous prime is 12487861. The next prime is 12487889. The reversal of 12487864 is 46878421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992 + ... + 5824.

Almost surely, 2^12487864 is an apocalyptic number.

It is an amenable number.

12487864 is an abundant number, since it is smaller than the sum of its proper divisors (13018136).

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

12487864 is a wasteful number, since it uses less digits than its factorization.

12487864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2883 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 12487864 is about 3533.8171995733. The cubic root of 12487864 is about 232.0043102647.

The spelling of 12487864 in words is "twelve million, four hundred eighty-seven thousand, eight hundred sixty-four".