85000177 has 2 divisors, whose sum is σ = 85000178. Its totient is φ = 85000176.

The previous prime is 85000169. The next prime is 85000183. The reversal of 85000177 is 77100058.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 21893041 = 7944^2 + 4679^2 .

It is a cyclic number.

It is not a de Polignac number, because 85000177 - 2³ = 85000169 is a prime.

It is not a weakly prime, because it can be changed into another prime (85000127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42500088 + 42500089.

It is an arithmetic number, because the mean of its divisors is an integer number (42500089).

Almost surely, 2^85000177 is an apocalyptic number.

It is an amenable number.

85000177 is a deficient number, since it is larger than the sum of its proper divisors (1).

85000177 is an equidigital number, since it uses as much as digits as its factorization.

85000177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 85000177 is about 9219.5540564606. The cubic root of 85000177 is about 439.6832724073.

The spelling of 85000177 in words is "eighty-five million, one hundred seventy-seven", and thus it is an aban number.