86888717 has 12 divisors (see below), whose sum is σ = 94564596. Its totient is φ = 79772160.

The previous prime is 86888647. The next prime is 86888719. The reversal of 86888717 is 71788868.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9554281 + 77334436 = 3091^2 + 8794^2 .

It is not a de Polignac number, because 86888717 - 2¹⁴ = 86872333 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 (86888719) 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, 8183 + ... + 15515.

It is an arithmetic number, because the mean of its divisors is an integer number (7880383).

Almost surely, 2^86888717 is an apocalyptic number.

It is an amenable number.

86888717 is a deficient number, since it is larger than the sum of its proper divisors (7675879).

86888717 is a wasteful number, since it uses less digits than its factorization.

86888717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408 (or 7391 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 53.

The square root of 86888717 is about 9321.4117493006. The cubic root of 86888717 is about 442.9157542514.

The spelling of 86888717 in words is "eighty-six million, eight hundred eighty-eight thousand, seven hundred seventeen".