12989900 has 108 divisors (see below), whose sum is σ = 35919576. Its totient is φ = 4032000.

The previous prime is 12989897. The next prime is 12989927. The reversal of 12989900 is 998921.

12989900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53780 + ... + 54020.

Almost surely, 2^12989900 is an apocalyptic number.

12989900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12989900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17959788).

12989900 is an abundant number, since it is smaller than the sum of its proper divisors (22929676).

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

12989900 is a wasteful number, since it uses less digits than its factorization.

12989900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 12989900 is about 3604.1503853197. The cubic root of 12989900 is about 235.0725594561.

The spelling of 12989900 in words is "twelve million, nine hundred eighty-nine thousand, nine hundred".