8681313 has 16 divisors (see below), whose sum is σ = 11943360. Its totient is φ = 5605824.

The previous prime is 8681311. The next prime is 8681317. The reversal of 8681313 is 3131868.

It is not a de Polignac number, because 8681313 - 2¹ = 8681311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8681311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22123 + ... + 22511.

It is an arithmetic number, because the mean of its divisors is an integer number (746460).

Almost surely, 2^8681313 is an apocalyptic number.

It is an amenable number.

8681313 is a deficient number, since it is larger than the sum of its proper divisors (3262047).

8681313 is a wasteful number, since it uses less digits than its factorization.

8681313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its digits is 3456, while the sum is 30.

The square root of 8681313 is about 2946.4067947247. The cubic root of 8681313 is about 205.5236503466.

The spelling of 8681313 in words is "eight million, six hundred eighty-one thousand, three hundred thirteen".