12791788 has 24 divisors (see below), whose sum is σ = 24206000. Its totient is φ = 5894208.

The previous prime is 12791777. The next prime is 12791789. The reversal of 12791788 is 88719721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12791789) 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, 538 + ... + 5086.

Almost surely, 2^12791788 is an apocalyptic number.

It is an amenable number.

12791788 is a deficient number, since it is larger than the sum of its proper divisors (11414212).

12791788 is a wasteful number, since it uses less digits than its factorization.

12791788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609 (or 4607 counting only the distinct ones).

The product of its digits is 56448, while the sum is 43.

The square root of 12791788 is about 3576.5609179769. The cubic root of 12791788 is about 233.8713832850.

The spelling of 12791788 in words is "twelve million, seven hundred ninety-one thousand, seven hundred eighty-eight".