85187671 has 2 divisors, whose sum is σ = 85187672. Its totient is φ = 85187670.

The previous prime is 85187647. The next prime is 85187701. The reversal of 85187671 is 17678158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85187671 - 2⁵ = 85187639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85187611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42593835 + 42593836.

It is an arithmetic number, because the mean of its divisors is an integer number (42593836).

Almost surely, 2^85187671 is an apocalyptic number.

85187671 is a deficient number, since it is larger than the sum of its proper divisors (1).

85187671 is an equidigital number, since it uses as much as digits as its factorization.

85187671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 43.

The square root of 85187671 is about 9229.7167345482. The cubic root of 85187671 is about 440.0063205015.

It can be divided in two parts, 85187 and 671, that added together give a palindrome (85858).

The spelling of 85187671 in words is "eighty-five million, one hundred eighty-seven thousand, six hundred seventy-one".