86808523 has 2 divisors, whose sum is σ = 86808524. Its totient is φ = 86808522.

The previous prime is 86808517. The next prime is 86808539. The reversal of 86808523 is 32580868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86808523 - 2¹³ = 86800331 is a prime.

It is not a weakly prime, because it can be changed into another prime (86808583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43404261 + 43404262.

It is an arithmetic number, because the mean of its divisors is an integer number (43404262).

Almost surely, 2^86808523 is an apocalyptic number.

86808523 is a deficient number, since it is larger than the sum of its proper divisors (1).

86808523 is an equidigital number, since it uses as much as digits as its factorization.

86808523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 86808523 is about 9317.1091546681. The cubic root of 86808523 is about 442.7794491770.

The spelling of 86808523 in words is "eighty-six million, eight hundred eight thousand, five hundred twenty-three".