86658851 has 2 divisors, whose sum is σ = 86658852. Its totient is φ = 86658850.

The previous prime is 86658833. The next prime is 86658853. The reversal of 86658851 is 15885668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86658851 - 2¹⁰ = 86657827 is a prime.

Together with 86658853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86658796 and 86658805.

It is not a weakly prime, because it can be changed into another prime (86658853) 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, 43329425 + 43329426.

It is an arithmetic number, because the mean of its divisors is an integer number (43329426).

Almost surely, 2^86658851 is an apocalyptic number.

86658851 is a deficient number, since it is larger than the sum of its proper divisors (1).

86658851 is an equidigital number, since it uses as much as digits as its factorization.

86658851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 47.

The square root of 86658851 is about 9309.0735844121. The cubic root of 86658851 is about 442.5248282110.

The spelling of 86658851 in words is "eighty-six million, six hundred fifty-eight thousand, eight hundred fifty-one".