86918339 has 2 divisors, whose sum is σ = 86918340. Its totient is φ = 86918338.

The previous prime is 86918333. The next prime is 86918353. The reversal of 86918339 is 93381968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86918339 - 2¹⁶ = 86852803 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86918293 and 86918302.

It is not a weakly prime, because it can be changed into another prime (86918333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43459169 + 43459170.

It is an arithmetic number, because the mean of its divisors is an integer number (43459170).

Almost surely, 2^86918339 is an apocalyptic number.

86918339 is a deficient number, since it is larger than the sum of its proper divisors (1).

86918339 is an equidigital number, since it uses as much as digits as its factorization.

86918339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 86918339 is about 9323.0005363080. Note that the first 3 decimals coincide. The cubic root of 86918339 is about 442.9660813067.

The spelling of 86918339 in words is "eighty-six million, nine hundred eighteen thousand, three hundred thirty-nine".