985877 has 2 divisors, whose sum is σ = 985878. Its totient is φ = 985876.

The previous prime is 985871. The next prime is 985903. The reversal of 985877 is 778589.

985877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682276 + 303601 = 826^2 + 551^2 .

It is a cyclic number.

It is not a de Polignac number, because 985877 - 2¹⁰ = 984853 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492938 + 492939.

It is an arithmetic number, because the mean of its divisors is an integer number (492939).

2⁹⁸⁵⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

985877 is a deficient number, since it is larger than the sum of its proper divisors (1).

985877 is an equidigital number, since it uses as much as digits as its factorization.

985877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 985877 is about 992.9133899792. The cubic root of 985877 is about 99.5269995667.

The spelling of 985877 in words is "nine hundred eighty-five thousand, eight hundred seventy-seven".