86716471 has 2 divisors, whose sum is σ = 86716472. Its totient is φ = 86716470.

The previous prime is 86716459. The next prime is 86716499. The reversal of 86716471 is 17461768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86716471 - 2¹⁵ = 86683703 is a prime.

It is a super-3 number, since 3×86716471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86716451) 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, 43358235 + 43358236.

It is an arithmetic number, because the mean of its divisors is an integer number (43358236).

Almost surely, 2^86716471 is an apocalyptic number.

86716471 is a deficient number, since it is larger than the sum of its proper divisors (1).

86716471 is an equidigital number, since it uses as much as digits as its factorization.

86716471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 86716471 is about 9312.1679001186. The cubic root of 86716471 is about 442.6228856361.

The spelling of 86716471 in words is "eighty-six million, seven hundred sixteen thousand, four hundred seventy-one".