12772812 has 48 divisors (see below), whose sum is σ = 32895072. Its totient is φ = 3832320.

The previous prime is 12772811. The next prime is 12772817. The reversal of 12772812 is 21827721.

It is a happy number.

12772812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12772812.

It is not an unprimeable number, because it can be changed into a prime (12772811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5398 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (685314).

Almost surely, 2^12772812 is an apocalyptic number.

12772812 is a gapful number since it is divisible by the number (12) 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 12772812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16447536).

12772812 is an abundant number, since it is smaller than the sum of its proper divisors (20122260).

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

12772812 is a wasteful number, since it uses less digits than its factorization.

12772812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058 (or 2056 counting only the distinct ones).

The product of its digits is 3136, while the sum is 30.

The square root of 12772812 is about 3573.9071056758. The cubic root of 12772812 is about 233.7556804171.

The spelling of 12772812 in words is "twelve million, seven hundred seventy-two thousand, eight hundred twelve".