12985764 has 24 divisors (see below), whose sum is σ = 33055008. Its totient is φ = 3935040.

The previous prime is 12985747. The next prime is 12985799. The reversal of 12985764 is 46758921.

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, 49057 + ... + 49320.

It is an arithmetic number, because the mean of its divisors is an integer number (1377292).

Almost surely, 2^12985764 is an apocalyptic number.

It is an amenable number.

12985764 is an abundant number, since it is smaller than the sum of its proper divisors (20069244).

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

12985764 is a wasteful number, since it uses less digits than its factorization.

12985764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98395 (or 98393 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 12985764 is about 3603.5765567003. The cubic root of 12985764 is about 235.0476076778.

It can be divided in two parts, 129857 and 64, that added together give a palindrome (129921).

The spelling of 12985764 in words is "twelve million, nine hundred eighty-five thousand, seven hundred sixty-four".