12730776 has 32 divisors (see below), whose sum is σ = 33212160. Its totient is φ = 4058912.

The previous prime is 12730733. The next prime is 12730777. The reversal of 12730776 is 67703721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730777) 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, 10980 + ... + 12083.

It is an arithmetic number, because the mean of its divisors is an integer number (1037880).

Almost surely, 2^12730776 is an apocalyptic number.

It is an amenable number.

12730776 is an abundant number, since it is smaller than the sum of its proper divisors (20481384).

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

12730776 is a wasteful number, since it uses less digits than its factorization.

12730776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23095 (or 23091 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 12730776 is about 3568.0213003849. The cubic root of 12730776 is about 233.4989644854.

It can be divided in two parts, 127 and 30776, that added together give a palindrome (30903).

The spelling of 12730776 in words is "twelve million, seven hundred thirty thousand, seven hundred seventy-six".