8791717321 has 4 divisors (see below), whose sum is σ = 8805650944. Its totient is φ = 8777783700.

The previous prime is 8791717307. The next prime is 8791717387. The reversal of 8791717321 is 1237171978.

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 8791717321 - 2⁹ = 8791716809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8791717021) 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, 6965865 + ... + 6967126.

It is an arithmetic number, because the mean of its divisors is an integer number (2201412736).

Almost surely, 2^8791717321 is an apocalyptic number.

It is an amenable number.

8791717321 is a deficient number, since it is larger than the sum of its proper divisors (13933623).

8791717321 is a wasteful number, since it uses less digits than its factorization.

8791717321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13933622.

The product of its digits is 148176, while the sum is 46.

The square root of 8791717321 is about 93764.1579762758. The cubic root of 8791717321 is about 2063.9122969195.

The spelling of 8791717321 in words is "eight billion, seven hundred ninety-one million, seven hundred seventeen thousand, three hundred twenty-one".