86128093 has 2 divisors, whose sum is σ = 86128094. Its totient is φ = 86128092.

The previous prime is 86128067. The next prime is 86128099. The reversal of 86128093 is 39082168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53260804 + 32867289 = 7298^2 + 5733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86128093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86128099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43064046 + 43064047.

It is an arithmetic number, because the mean of its divisors is an integer number (43064047).

Almost surely, 2^86128093 is an apocalyptic number.

It is an amenable number.

86128093 is a deficient number, since it is larger than the sum of its proper divisors (1).

86128093 is an equidigital number, since it uses as much as digits as its factorization.

86128093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 86128093 is about 9280.5222374606. The cubic root of 86128093 is about 441.6195360333.

The spelling of 86128093 in words is "eighty-six million, one hundred twenty-eight thousand, ninety-three".