86807089 has 2 divisors, whose sum is σ = 86807090. Its totient is φ = 86807088.

The previous prime is 86807059. The next prime is 86807093. The reversal of 86807089 is 98070868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 36397089 = 7100^2 + 6033^2 .

It is a cyclic number.

It is not a de Polignac number, because 86807089 - 2¹¹ = 86805041 is a prime.

It is not a weakly prime, because it can be changed into another prime (86807059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43403544 + 43403545.

It is an arithmetic number, because the mean of its divisors is an integer number (43403545).

Almost surely, 2^86807089 is an apocalyptic number.

It is an amenable number.

86807089 is a deficient number, since it is larger than the sum of its proper divisors (1).

86807089 is an equidigital number, since it uses as much as digits as its factorization.

86807089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 86807089 is about 9317.0321991501. The cubic root of 86807089 is about 442.7770110553. Note that the first 3 decimals are identical.

The spelling of 86807089 in words is "eighty-six million, eight hundred seven thousand, eighty-nine".