86423471 has 2 divisors, whose sum is σ = 86423472. Its totient is φ = 86423470.

The previous prime is 86423437. The next prime is 86423483. The reversal of 86423471 is 17432468.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86423471 is a prime.

It is a super-3 number, since 3×86423471³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86423431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43211735 + 43211736.

It is an arithmetic number, because the mean of its divisors is an integer number (43211736).

Almost surely, 2^86423471 is an apocalyptic number.

86423471 is a deficient number, since it is larger than the sum of its proper divisors (1).

86423471 is an equidigital number, since it uses as much as digits as its factorization.

86423471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 86423471 is about 9296.4224839451. The cubic root of 86423471 is about 442.1238076492.

The spelling of 86423471 in words is "eighty-six million, four hundred twenty-three thousand, four hundred seventy-one".