12788897 has 8 divisors (see below), whose sum is σ = 14558400. Its totient is φ = 11120560.

The previous prime is 12788891. The next prime is 12788933. The reversal of 12788897 is 79888721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12788897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12788891) 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, 25022 + ... + 25527.

It is an arithmetic number, because the mean of its divisors is an integer number (1819800).

Almost surely, 2^12788897 is an apocalyptic number.

It is an amenable number.

12788897 is a deficient number, since it is larger than the sum of its proper divisors (1769503).

12788897 is a wasteful number, since it uses less digits than its factorization.

12788897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50583.

The product of its digits is 451584, while the sum is 50.

The square root of 12788897 is about 3576.1567359387. The cubic root of 12788897 is about 233.8537633059.

The spelling of 12788897 in words is "twelve million, seven hundred eighty-eight thousand, eight hundred ninety-seven".