86688653 has 2 divisors, whose sum is σ = 86688654. Its totient is φ = 86688652.

The previous prime is 86688629. The next prime is 86688671. The reversal of 86688653 is 35688668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75811849 + 10876804 = 8707^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 86688653 - 2¹² = 86684557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86688053) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344326 + 43344327.

It is an arithmetic number, because the mean of its divisors is an integer number (43344327).

Almost surely, 2^86688653 is an apocalyptic number.

It is an amenable number.

86688653 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688653 is an equidigital number, since it uses as much as digits as its factorization.

86688653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 50.

The square root of 86688653 is about 9310.6741431542. The cubic root of 86688653 is about 442.5755505291.

The spelling of 86688653 in words is "eighty-six million, six hundred eighty-eight thousand, six hundred fifty-three".