12785900 has 18 divisors (see below), whose sum is σ = 27745620. Its totient is φ = 5114320.

The previous prime is 12785869. The next prime is 12785933. The reversal of 12785900 is 958721.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 63830 + ... + 64029.

Almost surely, 2^12785900 is an apocalyptic number.

12785900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12785900 is an abundant number, since it is smaller than the sum of its proper divisors (14959720).

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

12785900 is a wasteful number, since it uses less digits than its factorization.

12785900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127873 (or 127866 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 12785900 is about 3575.7376861286. The cubic root of 12785900 is about 233.8354944778.

The spelling of 12785900 in words is "twelve million, seven hundred eighty-five thousand, nine hundred".