85919271 has 4 divisors (see below), whose sum is σ = 114559032. Its totient is φ = 57279512.

The previous prime is 85919261. The next prime is 85919287. The reversal of 85919271 is 17291958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85919271 - 2¹⁵ = 85886503 is a prime.

It is a super-2 number, since 2×85919271² = 14764242258342882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85919221) 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 in 3 ways as a sum of consecutive naturals, for example, 14319876 + ... + 14319881.

It is an arithmetic number, because the mean of its divisors is an integer number (28639758).

Almost surely, 2^85919271 is an apocalyptic number.

85919271 is a deficient number, since it is larger than the sum of its proper divisors (28639761).

85919271 is a wasteful number, since it uses less digits than its factorization.

85919271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28639760.

The product of its digits is 45360, while the sum is 42.

The square root of 85919271 is about 9269.2648575817. The cubic root of 85919271 is about 441.2623374209.

The spelling of 85919271 in words is "eighty-five million, nine hundred nineteen thousand, two hundred seventy-one".