8219713 has 4 divisors (see below), whose sum is σ = 8323840. Its totient is φ = 8115588.

The previous prime is 8219711. The next prime is 8219719. The reversal of 8219713 is 3179128.

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 8219713 - 2¹ = 8219711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8219711) 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, 51945 + ... + 52102.

It is an arithmetic number, because the mean of its divisors is an integer number (2080960).

Almost surely, 2^8219713 is an apocalyptic number.

It is an amenable number.

8219713 is a deficient number, since it is larger than the sum of its proper divisors (104127).

8219713 is a wasteful number, since it uses less digits than its factorization.

8219713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104126.

The product of its digits is 3024, while the sum is 31.

The square root of 8219713 is about 2867.0041855568. The cubic root of 8219713 is about 201.8144310875.

The spelling of 8219713 in words is "eight million, two hundred nineteen thousand, seven hundred thirteen".