86751873 has 12 divisors (see below), whose sum is σ = 134947540. Its totient is φ = 53385696.

The previous prime is 86751871. The next prime is 86751877. The reversal of 86751873 is 37815768.

86751873 is a `hidden beast` number, since 8 + 67 + 518 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4613904 + 82137969 = 2148^2 + 9063^2 .

It is not a de Polignac number, because 86751873 - 2¹ = 86751871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86751871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370618 + ... + 370851.

Almost surely, 2^86751873 is an apocalyptic number.

It is an amenable number.

86751873 is a deficient number, since it is larger than the sum of its proper divisors (48195667).

86751873 is a wasteful number, since it uses less digits than its factorization.

86751873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741488 (or 741485 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 86751873 is about 9314.0685524641. The cubic root of 86751873 is about 442.6831110400.

The spelling of 86751873 in words is "eighty-six million, seven hundred fifty-one thousand, eight hundred seventy-three".