12312776 has 16 divisors (see below), whose sum is σ = 26384640. Its totient is φ = 5276880.

The previous prime is 12312767. The next prime is 12312787. The reversal of 12312776 is 67721321.

12312776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109880 + ... + 109991.

It is an arithmetic number, because the mean of its divisors is an integer number (1649040).

Almost surely, 2^12312776 is an apocalyptic number.

It is an amenable number.

12312776 is an abundant number, since it is smaller than the sum of its proper divisors (14071864).

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

12312776 is a wasteful number, since it uses less digits than its factorization.

12312776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219884 (or 219880 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 12312776 is about 3508.9565400557. The cubic root of 12312776 is about 230.9149190367.

The spelling of 12312776 in words is "twelve million, three hundred twelve thousand, seven hundred seventy-six".