86808653 has 2 divisors, whose sum is σ = 86808654. Its totient is φ = 86808652.

The previous prime is 86808619. The next prime is 86808661. The reversal of 86808653 is 35680868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49378729 + 37429924 = 7027^2 + 6118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86808653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86808053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43404326 + 43404327.

It is an arithmetic number, because the mean of its divisors is an integer number (43404327).

Almost surely, 2^86808653 is an apocalyptic number.

It is an amenable number.

86808653 is a deficient number, since it is larger than the sum of its proper divisors (1).

86808653 is an equidigital number, since it uses as much as digits as its factorization.

86808653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 86808653 is about 9317.1161310783. The cubic root of 86808653 is about 442.7796702049.

It can be divided in two parts, 8680865 and 3, that added together give a palindrome (8680868).

The spelling of 86808653 in words is "eighty-six million, eight hundred eight thousand, six hundred fifty-three".