12788017 has 4 divisors (see below), whose sum is σ = 13950576. Its totient is φ = 11625460.

The previous prime is 12788003. The next prime is 12788021. The reversal of 12788017 is 71088721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12788017 - 2⁷ = 12787889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12788057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581263 + ... + 581284.

It is an arithmetic number, because the mean of its divisors is an integer number (3487644).

Almost surely, 2^12788017 is an apocalyptic number.

It is an amenable number.

12788017 is a deficient number, since it is larger than the sum of its proper divisors (1162559).

12788017 is a wasteful number, since it uses less digits than its factorization.

12788017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162558.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12788017 is about 3576.0336967092. The cubic root of 12788017 is about 233.8483993815.

The spelling of 12788017 in words is "twelve million, seven hundred eighty-eight thousand, seventeen".