86414891 has 2 divisors, whose sum is σ = 86414892. Its totient is φ = 86414890.

The previous prime is 86414849. The next prime is 86414903. The reversal of 86414891 is 19841468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86414891 - 2⁶ = 86414827 is a prime.

It is not a weakly prime, because it can be changed into another prime (86414191) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43207445 + 43207446.

It is an arithmetic number, because the mean of its divisors is an integer number (43207446).

Almost surely, 2^86414891 is an apocalyptic number.

86414891 is a deficient number, since it is larger than the sum of its proper divisors (1).

86414891 is an equidigital number, since it uses as much as digits as its factorization.

86414891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 41.

The square root of 86414891 is about 9295.9610046514. The cubic root of 86414891 is about 442.1091760228.

The spelling of 86414891 in words is "eighty-six million, four hundred fourteen thousand, eight hundred ninety-one".