86128573 has 2 divisors, whose sum is σ = 86128574. Its totient is φ = 86128572.

The previous prime is 86128561. The next prime is 86128589. The reversal of 86128573 is 37582168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85322169 + 806404 = 9237^2 + 898^2 .

It is a cyclic number.

It is not a de Polignac number, because 86128573 - 2⁵ = 86128541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86128513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43064286 + 43064287.

It is an arithmetic number, because the mean of its divisors is an integer number (43064287).

Almost surely, 2^86128573 is an apocalyptic number.

It is an amenable number.

86128573 is a deficient number, since it is larger than the sum of its proper divisors (1).

86128573 is an equidigital number, since it uses as much as digits as its factorization.

86128573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 86128573 is about 9280.5480980382. The cubic root of 86128573 is about 441.6203564276.

The spelling of 86128573 in words is "eighty-six million, one hundred twenty-eight thousand, five hundred seventy-three".