12782613 has 8 divisors (see below), whose sum is σ = 17117568. Its totient is φ = 8484704.

The previous prime is 12782599. The next prime is 12782629. The reversal of 12782613 is 31628721.

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

It is a cyclic number.

It is not a de Polignac number, because 12782613 - 2⁹ = 12782101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782683) 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, 8445 + ... + 9842.

It is an arithmetic number, because the mean of its divisors is an integer number (2139696).

Almost surely, 2^12782613 is an apocalyptic number.

It is an amenable number.

12782613 is a deficient number, since it is larger than the sum of its proper divisors (4334955).

12782613 is a wasteful number, since it uses less digits than its factorization.

12782613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523.

The product of its digits is 4032, while the sum is 30.

The square root of 12782613 is about 3575.2780311467. The cubic root of 12782613 is about 233.8154546124.

The spelling of 12782613 in words is "twelve million, seven hundred eighty-two thousand, six hundred thirteen".