6920870717 has 8 divisors (see below), whose sum is σ = 7047363672. Its totient is φ = 6794798400.

The previous prime is 6920870689. The next prime is 6920870767. The reversal of 6920870717 is 7170780296.

It can be written as a sum of positive squares in 4 ways, for example, as 8444836 + 6912425881 = 2906^2 + 83141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6920870717 - 2¹⁰ = 6920869693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920870767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71858 + ... + 137859.

It is an arithmetic number, because the mean of its divisors is an integer number (880920459).

Almost surely, 2^6920870717 is an apocalyptic number.

It is an amenable number.

6920870717 is a deficient number, since it is larger than the sum of its proper divisors (126492955).

6920870717 is a wasteful number, since it uses less digits than its factorization.

6920870717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210319.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 6920870717 is about 83191.7707288407. The cubic root of 6920870717 is about 1905.6958089978.

The spelling of 6920870717 in words is "six billion, nine hundred twenty million, eight hundred seventy thousand, seven hundred seventeen".