12772912 has 40 divisors (see below), whose sum is σ = 26292960. Its totient is φ = 5998080.

The previous prime is 12772909. The next prime is 12772919. The reversal of 12772912 is 21927721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12772919) 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, 22164 + ... + 22732.

It is an arithmetic number, because the mean of its divisors is an integer number (657324).

Almost surely, 2^12772912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12772912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13146480).

12772912 is an abundant number, since it is smaller than the sum of its proper divisors (13520048).

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

12772912 is a wasteful number, since it uses less digits than its factorization.

12772912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its digits is 3528, while the sum is 31.

The square root of 12772912 is about 3573.9210959393. The cubic root of 12772912 is about 233.7562904500.

The spelling of 12772912 in words is "twelve million, seven hundred seventy-two thousand, nine hundred twelve".