12487320 has 48 divisors (see below), whose sum is σ = 40584960. Its totient is φ = 3329856.

The previous prime is 12487301. The next prime is 12487357. The reversal of 12487320 is 2378421.

12487320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16984 + ... + 17703.

It is an arithmetic number, because the mean of its divisors is an integer number (845520).

Almost surely, 2^12487320 is an apocalyptic number.

12487320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12487320 is an abundant number, since it is smaller than the sum of its proper divisors (28097640).

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

12487320 is a wasteful number, since it uses less digits than its factorization.

12487320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34704 (or 34697 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12487320 is about 3533.7402281435. The cubic root of 12487320 is about 232.0009413359. Note that the first 3 decimals are identical.

The spelling of 12487320 in words is "twelve million, four hundred eighty-seven thousand, three hundred twenty".