86397329 has 2 divisors, whose sum is σ = 86397330. Its totient is φ = 86397328.

The previous prime is 86397317. The next prime is 86397343. The reversal of 86397329 is 92379368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 6115729 = 8960^2 + 2473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86397329 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86397379) 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, 43198664 + 43198665.

It is an arithmetic number, because the mean of its divisors is an integer number (43198665).

Almost surely, 2^86397329 is an apocalyptic number.

It is an amenable number.

86397329 is a deficient number, since it is larger than the sum of its proper divisors (1).

86397329 is an equidigital number, since it uses as much as digits as its factorization.

86397329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 86397329 is about 9295.0163528635. The cubic root of 86397329 is about 442.0792242121.

The spelling of 86397329 in words is "eighty-six million, three hundred ninety-seven thousand, three hundred twenty-nine".