985177 has 2 divisors, whose sum is σ = 985178. Its totient is φ = 985176.

The previous prime is 985151. The next prime is 985181. The reversal of 985177 is 771589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 978121 + 7056 = 989^2 + 84^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985177 is a prime.

It is not a weakly prime, because it can be changed into another prime (985277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492588 + 492589.

It is an arithmetic number, because the mean of its divisors is an integer number (492589).

2⁹⁸⁵¹⁷⁷ is an apocalyptic number.

It is an amenable number.

985177 is a deficient number, since it is larger than the sum of its proper divisors (1).

985177 is an equidigital number, since it uses as much as digits as its factorization.

985177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 37.

The square root of 985177 is about 992.5608293702. The cubic root of 985177 is about 99.5034383465.

It can be divided in two parts, 985 and 177, that multiplied together give a triangular number (174345 = T₅₉₀).

The spelling of 985177 in words is "nine hundred eighty-five thousand, one hundred seventy-seven".