8705743487 has 16 divisors (see below), whose sum is σ = 10232780544. Its totient is φ = 7251000000.

The previous prime is 8705743481. The next prime is 8705743489. The reversal of 8705743487 is 7843475078.

It is a cyclic number.

It is not a de Polignac number, because 8705743487 - 2¹⁴ = 8705727103 is a prime.

It is a super-3 number, since 3×8705743487³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8705743481) 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 15 ways as a sum of consecutive naturals, for example, 11612 + ... + 132462.

It is an arithmetic number, because the mean of its divisors is an integer number (639548784).

Almost surely, 2^8705743487 is an apocalyptic number.

8705743487 is a deficient number, since it is larger than the sum of its proper divisors (1527037057).

8705743487 is a wasteful number, since it uses less digits than its factorization.

8705743487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121150.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The square root of 8705743487 is about 93304.5737732079. The cubic root of 8705743487 is about 2057.1626100490.

The spelling of 8705743487 in words is "eight billion, seven hundred five million, seven hundred forty-three thousand, four hundred eighty-seven".