86589493 has 2 divisors, whose sum is σ = 86589494. Its totient is φ = 86589492.

The previous prime is 86589473. The next prime is 86589523. The reversal of 86589493 is 39498568.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84676804 + 1912689 = 9202^2 + 1383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86589493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86589493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86589473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43294746 + 43294747.

It is an arithmetic number, because the mean of its divisors is an integer number (43294747).

Almost surely, 2^86589493 is an apocalyptic number.

It is an amenable number.

86589493 is a deficient number, since it is larger than the sum of its proper divisors (1).

86589493 is an equidigital number, since it uses as much as digits as its factorization.

86589493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The square root of 86589493 is about 9305.3475485873. The cubic root of 86589493 is about 442.4067374498.

The spelling of 86589493 in words is "eighty-six million, five hundred eighty-nine thousand, four hundred ninety-three".