8687140573 has 4 divisors (see below), whose sum is σ = 9198148860. Its totient is φ = 8176132288.

The previous prime is 8687140531. The next prime is 8687140591. The reversal of 8687140573 is 3750417868.

It is a happy number.

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 2385638649 + 6301501924 = 48843^2 + 79382^2 .

It is a cyclic number.

It is not a de Polignac number, because 8687140573 - 2⁹ = 8687140061 is a prime.

It is a super-2 number, since 2×8687140573² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687140523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255504118 + ... + 255504151.

It is an arithmetic number, because the mean of its divisors is an integer number (2299537215).

Almost surely, 2^8687140573 is an apocalyptic number.

It is an amenable number.

8687140573 is a deficient number, since it is larger than the sum of its proper divisors (511008287).

8687140573 is a wasteful number, since it uses less digits than its factorization.

8687140573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511008286.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 8687140573 is about 93204.8312749935. The cubic root of 8687140573 is about 2055.6962788400.

The spelling of 8687140573 in words is "eight billion, six hundred eighty-seven million, one hundred forty thousand, five hundred seventy-three".