86336993 has 2 divisors, whose sum is σ = 86336994. Its totient is φ = 86336992.

The previous prime is 86336959. The next prime is 86337011. The reversal of 86336993 is 39963368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48539089 + 37797904 = 6967^2 + 6148^2 .

It is a cyclic number.

It is not a de Polignac number, because 86336993 - 2⁸ = 86336737 is a prime.

It is not a weakly prime, because it can be changed into another prime (86336093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43168496 + 43168497.

It is an arithmetic number, because the mean of its divisors is an integer number (43168497).

Almost surely, 2^86336993 is an apocalyptic number.

It is an amenable number.

86336993 is a deficient number, since it is larger than the sum of its proper divisors (1).

86336993 is an equidigital number, since it uses as much as digits as its factorization.

86336993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 47.

The square root of 86336993 is about 9291.7701758061. The cubic root of 86336993 is about 441.9762908462.

The spelling of 86336993 in words is "eighty-six million, three hundred thirty-six thousand, nine hundred ninety-three".