8077690717 has 4 divisors (see below), whose sum is σ = 8091887580. Its totient is φ = 8063493856.

The previous prime is 8077690703. The next prime is 8077690721. The reversal of 8077690717 is 7170967708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1959478756 + 6118211961 = 44266^2 + 78219^2 .

It is a cyclic number.

It is not a de Polignac number, because 8077690717 - 2⁷ = 8077690589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8077690787) 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, 7097578 + ... + 7098715.

It is an arithmetic number, because the mean of its divisors is an integer number (2022971895).

Almost surely, 2^8077690717 is an apocalyptic number.

It is an amenable number.

8077690717 is a deficient number, since it is larger than the sum of its proper divisors (14196863).

8077690717 is a wasteful number, since it uses less digits than its factorization.

8077690717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14196862.

The product of its (nonzero) digits is 1037232, while the sum is 52.

The square root of 8077690717 is about 89875.9740809522. The cubic root of 8077690717 is about 2006.4533809573.

The spelling of 8077690717 in words is "eight billion, seventy-seven million, six hundred ninety thousand, seven hundred seventeen".