12687480 has 96 divisors (see below), whose sum is σ = 44422560. Its totient is φ = 3121920.

The previous prime is 12687469. The next prime is 12687523. The reversal of 12687480 is 8478621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3325 + ... + 6035.

It is an arithmetic number, because the mean of its divisors is an integer number (462735).

Almost surely, 2^12687480 is an apocalyptic number.

12687480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12687480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22211280).

12687480 is an abundant number, since it is smaller than the sum of its proper divisors (31735080).

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

12687480 is a wasteful number, since it uses less digits than its factorization.

12687480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 12687480 is about 3561.9489047430. The cubic root of 12687480 is about 233.2339622214.

The spelling of 12687480 in words is "twelve million, six hundred eighty-seven thousand, four hundred eighty".