85271177 has 2 divisors, whose sum is σ = 85271178. Its totient is φ = 85271176.

The previous prime is 85271171. The next prime is 85271191. The reversal of 85271177 is 77117258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 21335161 = 7996^2 + 4619^2 .

It is a cyclic number.

It is not a de Polignac number, because 85271177 - 2⁴ = 85271161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85271177.

It is not a weakly prime, because it can be changed into another prime (85271171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42635588 + 42635589.

It is an arithmetic number, because the mean of its divisors is an integer number (42635589).

Almost surely, 2^85271177 is an apocalyptic number.

It is an amenable number.

85271177 is a deficient number, since it is larger than the sum of its proper divisors (1).

85271177 is an equidigital number, since it uses as much as digits as its factorization.

85271177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27440, while the sum is 38.

The square root of 85271177 is about 9234.2393839449. The cubic root of 85271177 is about 440.1500469663.

The spelling of 85271177 in words is "eighty-five million, two hundred seventy-one thousand, one hundred seventy-seven".