12777996 has 48 divisors (see below), whose sum is σ = 37175040. Its totient is φ = 3318720.

The previous prime is 12777979. The next prime is 12778001. The reversal of 12777996 is 69977721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5991 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (774480).

Almost surely, 2^12777996 is an apocalyptic number.

It is an amenable number.

12777996 is an abundant number, since it is smaller than the sum of its proper divisors (24397044).

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

12777996 is a wasteful number, since it uses less digits than its factorization.

12777996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854 (or 13852 counting only the distinct ones).

The product of its digits is 333396, while the sum is 48.

The square root of 12777996 is about 3574.6322887816. The cubic root of 12777996 is about 233.7873003283.

The spelling of 12777996 in words is "twelve million, seven hundred seventy-seven thousand, nine hundred ninety-six".