86940671 has 2 divisors, whose sum is σ = 86940672. Its totient is φ = 86940670.

The previous prime is 86940661. The next prime is 86940683. The reversal of 86940671 is 17604968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86940671 - 2²⁶ = 19831807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86940661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43470335 + 43470336.

It is an arithmetic number, because the mean of its divisors is an integer number (43470336).

Almost surely, 2^86940671 is an apocalyptic number.

86940671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86940671 is an equidigital number, since it uses as much as digits as its factorization.

86940671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 86940671 is about 9324.1981424678. The cubic root of 86940671 is about 443.0040152707.

The spelling of 86940671 in words is "eighty-six million, nine hundred forty thousand, six hundred seventy-one".