12870613 has 4 divisors (see below), whose sum is σ = 14709280. Its totient is φ = 11031948.

The previous prime is 12870607. The next prime is 12870617. The reversal of 12870613 is 31607821.

12870613 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 12870613 - 2⁹ = 12870101 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 (12870617) 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, 919323 + ... + 919336.

It is an arithmetic number, because the mean of its divisors is an integer number (3677320).

Almost surely, 2^12870613 is an apocalyptic number.

It is an amenable number.

12870613 is a deficient number, since it is larger than the sum of its proper divisors (1838667).

12870613 is an equidigital number, since it uses as much as digits as its factorization.

12870613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838666.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12870613 is about 3587.5636579718. The cubic root of 12870613 is about 234.3507839395.

The spelling of 12870613 in words is "twelve million, eight hundred seventy thousand, six hundred thirteen".