12785584 has 20 divisors (see below), whose sum is σ = 28311184. Its totient is φ = 5479488.

The previous prime is 12785579. The next prime is 12785587. The reversal of 12785584 is 48558721.

It is not an unprimeable number, because it can be changed into a prime (12785587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56967 + ... + 57190.

Almost surely, 2^12785584 is an apocalyptic number.

12785584 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12785584 is an abundant number, since it is smaller than the sum of its proper divisors (15525600).

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

12785584 is a wasteful number, since it uses less digits than its factorization.

12785584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114172 (or 114166 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 12785584 is about 3575.6934991691. The cubic root of 12785584 is about 233.8335680686.

The spelling of 12785584 in words is "twelve million, seven hundred eighty-five thousand, five hundred eighty-four".