6871513 has 4 divisors (see below), whose sum is σ = 7496208. Its totient is φ = 6246820.

The previous prime is 6871511. The next prime is 6871547. The reversal of 6871513 is 3151786.

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 6871513 - 2¹ = 6871511 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (6871511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312331 + ... + 312352.

It is an arithmetic number, because the mean of its divisors is an integer number (1874052).

Almost surely, 2^6871513 is an apocalyptic number.

It is an amenable number.

6871513 is a deficient number, since it is larger than the sum of its proper divisors (624695).

6871513 is a wasteful number, since it uses less digits than its factorization.

6871513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624694.

The product of its digits is 5040, while the sum is 31.

The square root of 6871513 is about 2621.3570912792. The cubic root of 6871513 is about 190.1154699766.

The spelling of 6871513 in words is "six million, eight hundred seventy-one thousand, five hundred thirteen".