86401171 has 2 divisors, whose sum is σ = 86401172. Its totient is φ = 86401170.

The previous prime is 86401099. The next prime is 86401177. The reversal of 86401171 is 17110468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86401171 - 2¹³ = 86392979 is a prime.

It is not a weakly prime, because it can be changed into another prime (86401177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43200585 + 43200586.

It is an arithmetic number, because the mean of its divisors is an integer number (43200586).

Almost surely, 2^86401171 is an apocalyptic number.

86401171 is a deficient number, since it is larger than the sum of its proper divisors (1).

86401171 is an equidigital number, since it uses as much as digits as its factorization.

86401171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 86401171 is about 9295.2230204552. The cubic root of 86401171 is about 442.0857770505.

The spelling of 86401171 in words is "eighty-six million, four hundred one thousand, one hundred seventy-one".