12706772 has 18 divisors (see below), whose sum is σ = 24080238. Its totient is φ = 5864352.

The previous prime is 12706723. The next prime is 12706777. The reversal of 12706772 is 27760721.

It is a happy number.

12706772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 414736 + 12292036 = 644^2 + 3506^2 .

It is a super-2 number, since 2×12706772² = 322924109319968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12706777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8723 + ... + 10074.

It is an arithmetic number, because the mean of its divisors is an integer number (1337791).

Almost surely, 2^12706772 is an apocalyptic number.

It is an amenable number.

12706772 is a deficient number, since it is larger than the sum of its proper divisors (11373466).

12706772 is a wasteful number, since it uses less digits than its factorization.

12706772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18827 (or 18812 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 12706772 is about 3564.6559441270. The cubic root of 12706772 is about 233.3521173087.

The spelling of 12706772 in words is "twelve million, seven hundred six thousand, seven hundred seventy-two".