12788013 has 8 divisors (see below), whose sum is σ = 19486528. Its totient is φ = 7307424.

The previous prime is 12788003. The next prime is 12788021. The reversal of 12788013 is 31088721.

It is a happy number.

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

It is not a de Polignac number, because 12788013 - 2⁴ = 12787997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788003) 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, 304456 + ... + 304497.

It is an arithmetic number, because the mean of its divisors is an integer number (2435816).

Almost surely, 2^12788013 is an apocalyptic number.

It is an amenable number.

12788013 is a deficient number, since it is larger than the sum of its proper divisors (6698515).

12788013 is an equidigital number, since it uses as much as digits as its factorization.

12788013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608963.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 12788013 is about 3576.0331374304. The cubic root of 12788013 is about 233.8483749994.

The spelling of 12788013 in words is "twelve million, seven hundred eighty-eight thousand, thirteen".