86713589 has 2 divisors, whose sum is σ = 86713590. Its totient is φ = 86713588.

The previous prime is 86713577. The next prime is 86713591. The reversal of 86713589 is 98531768.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74252689 + 12460900 = 8617^2 + 3530^2 .

It is a cyclic number.

It is not a de Polignac number, because 86713589 - 2⁴ = 86713573 is a prime.

It is a Sophie Germain prime.

Together with 86713591, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86713559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43356794 + 43356795.

It is an arithmetic number, because the mean of its divisors is an integer number (43356795).

Almost surely, 2^86713589 is an apocalyptic number.

It is an amenable number.

86713589 is a deficient number, since it is larger than the sum of its proper divisors (1).

86713589 is an equidigital number, since it uses as much as digits as its factorization.

86713589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 86713589 is about 9312.0131550594. The cubic root of 86713589 is about 442.6179820952.

The spelling of 86713589 in words is "eighty-six million, seven hundred thirteen thousand, five hundred eighty-nine".