8321713 has 4 divisors (see below), whose sum is σ = 8334448. Its totient is φ = 8308980.

The previous prime is 8321683. The next prime is 8321723. The reversal of 8321713 is 3171238.

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 a de Polignac number, because none of the positive numbers 2^k-8321713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8321723) 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, 5331 + ... + 6712.

It is an arithmetic number, because the mean of its divisors is an integer number (2083612).

Almost surely, 2^8321713 is an apocalyptic number.

It is an amenable number.

8321713 is a deficient number, since it is larger than the sum of its proper divisors (12735).

8321713 is a wasteful number, since it uses less digits than its factorization.

8321713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12734.

The product of its digits is 1008, while the sum is 25.

The square root of 8321713 is about 2884.7379430375. The cubic root of 8321713 is about 202.6457863967.

The spelling of 8321713 in words is "eight million, three hundred twenty-one thousand, seven hundred thirteen".