86434177 has 2 divisors, whose sum is σ = 86434178. Its totient is φ = 86434176.

The previous prime is 86434163. The next prime is 86434189. The reversal of 86434177 is 77143468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 24591681 = 7864^2 + 4959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86434177 is a prime.

It is not a weakly prime, because it can be changed into another prime (86434147) 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, 43217088 + 43217089.

It is an arithmetic number, because the mean of its divisors is an integer number (43217089).

Almost surely, 2^86434177 is an apocalyptic number.

It is an amenable number.

86434177 is a deficient number, since it is larger than the sum of its proper divisors (1).

86434177 is an equidigital number, since it uses as much as digits as its factorization.

86434177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 86434177 is about 9296.9982790146. The cubic root of 86434177 is about 442.1420634231.

The spelling of 86434177 in words is "eighty-six million, four hundred thirty-four thousand, one hundred seventy-seven".