12689012 has 24 divisors (see below), whose sum is σ = 25811520. Its totient is φ = 5345280.

The previous prime is 12689003. The next prime is 12689029. The reversal of 12689012 is 21098621.

12689012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12689012² = 322022051072288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2189 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (1075480).

Almost surely, 2^12689012 is an apocalyptic number.

It is an amenable number.

12689012 is an abundant number, since it is smaller than the sum of its proper divisors (13122508).

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

12689012 is a wasteful number, since it uses less digits than its factorization.

12689012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751 (or 7749 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12689012 is about 3562.1639490624. The cubic root of 12689012 is about 233.2433494296.

The spelling of 12689012 in words is "twelve million, six hundred eighty-nine thousand, twelve".