12985860 has 24 divisors (see below), whose sum is σ = 36360576. Its totient is φ = 3462880.

The previous prime is 12985801. The next prime is 12985867. The reversal of 12985860 is 6858921.

It is not an unprimeable number, because it can be changed into a prime (12985867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108156 + ... + 108275.

It is an arithmetic number, because the mean of its divisors is an integer number (1515024).

Almost surely, 2^12985860 is an apocalyptic number.

12985860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12985860 is an abundant number, since it is smaller than the sum of its proper divisors (23374716).

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

12985860 is a wasteful number, since it uses less digits than its factorization.

12985860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216443 (or 216441 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12985860 is about 3603.5898767757. The cubic root of 12985860 is about 235.0481868894.

The spelling of 12985860 in words is "twelve million, nine hundred eighty-five thousand, eight hundred sixty".