8093977517 has 4 divisors (see below), whose sum is σ = 8373080220. Its totient is φ = 7814874816.

The previous prime is 8093977511. The next prime is 8093977531. The reversal of 8093977517 is 7157793908.

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 2562485641 + 5531491876 = 50621^2 + 74374^2 .

It is a cyclic number.

It is not a de Polignac number, because 8093977517 - 2⁴ = 8093977501 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 (8093977511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139551308 + ... + 139551365.

It is an arithmetic number, because the mean of its divisors is an integer number (2093270055).

Almost surely, 2^8093977517 is an apocalyptic number.

It is an amenable number.

8093977517 is a deficient number, since it is larger than the sum of its proper divisors (279102703).

8093977517 is a wasteful number, since it uses less digits than its factorization.

8093977517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279102702.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The square root of 8093977517 is about 89966.5355396105. The cubic root of 8093977517 is about 2007.8009924473.

The spelling of 8093977517 in words is "eight billion, ninety-three million, nine hundred seventy-seven thousand, five hundred seventeen".