8506913 has 4 divisors (see below), whose sum is σ = 8514240. Its totient is φ = 8499588.

The previous prime is 8506907. The next prime is 8506921. The reversal of 8506913 is 3196058.

8506913 is digitally balanced in base 3, because in such base 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8506913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8506913.

It is not an unprimeable number, because it can be changed into a prime (8506933) 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, 1493 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (2128560).

Almost surely, 2^8506913 is an apocalyptic number.

It is an amenable number.

8506913 is a deficient number, since it is larger than the sum of its proper divisors (7327).

8506913 is a wasteful number, since it uses less digits than its factorization.

8506913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 8506913 is about 2916.6612761855. The cubic root of 8506913 is about 204.1380665385.

The spelling of 8506913 in words is "eight million, five hundred six thousand, nine hundred thirteen".