85671371 has 2 divisors, whose sum is σ = 85671372. Its totient is φ = 85671370.

The previous prime is 85671353. The next prime is 85671431. The reversal of 85671371 is 17317658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85671371 - 2²⁶ = 18562507 is a prime.

It is not a weakly prime, because it can be changed into another prime (85671301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42835685 + 42835686.

It is an arithmetic number, because the mean of its divisors is an integer number (42835686).

Almost surely, 2^85671371 is an apocalyptic number.

85671371 is a deficient number, since it is larger than the sum of its proper divisors (1).

85671371 is an equidigital number, since it uses as much as digits as its factorization.

85671371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 85671371 is about 9255.8830480943. The cubic root of 85671371 is about 440.8375421197.

It can be divided in two parts, 856 and 71371, that added together give a palindrome (72227).

The spelling of 85671371 in words is "eighty-five million, six hundred seventy-one thousand, three hundred seventy-one".