12785980 has 12 divisors (see below), whose sum is σ = 26850600. Its totient is φ = 5114384.

The previous prime is 12785963. The next prime is 12785987. The reversal of 12785980 is 8958721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785987) 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, 319630 + ... + 319669.

It is an arithmetic number, because the mean of its divisors is an integer number (2237550).

Almost surely, 2^12785980 is an apocalyptic number.

12785980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12785980 is an abundant number, since it is smaller than the sum of its proper divisors (14064620).

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

12785980 is a wasteful number, since it uses less digits than its factorization.

12785980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639308 (or 639306 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12785980 is about 3575.7488726140. The cubic root of 12785980 is about 233.8359821713.

The spelling of 12785980 in words is "twelve million, seven hundred eighty-five thousand, nine hundred eighty".