86999093 has 2 divisors, whose sum is σ = 86999094. Its totient is φ = 86999092.

The previous prime is 86999057. The next prime is 86999111. The reversal of 86999093 is 39099968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 35259844 = 7193^2 + 5938^2 .

It is a cyclic number.

It is not a de Polignac number, because 86999093 - 2¹² = 86994997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86990093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43499546 + 43499547.

It is an arithmetic number, because the mean of its divisors is an integer number (43499547).

Almost surely, 2^86999093 is an apocalyptic number.

It is an amenable number.

86999093 is a deficient number, since it is larger than the sum of its proper divisors (1).

86999093 is an equidigital number, since it uses as much as digits as its factorization.

86999093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 86999093 is about 9327.3304326586. The cubic root of 86999093 is about 443.1032223325.

The spelling of 86999093 in words is "eighty-six million, nine hundred ninety-nine thousand, ninety-three".