985767 has 4 divisors (see below), whose sum is σ = 1314360. Its totient is φ = 657176.

The previous prime is 985759. The next prime is 985781. The reversal of 985767 is 767589.

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 985767 - 2³ = 985759 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164292 + ... + 164297.

It is an arithmetic number, because the mean of its divisors is an integer number (328590).

2⁹⁸⁵⁷⁶⁷ is an apocalyptic number.

985767 is a deficient number, since it is larger than the sum of its proper divisors (328593).

985767 is a wasteful number, since it uses less digits than its factorization.

985767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328592.

The product of its digits is 105840, while the sum is 42.

The square root of 985767 is about 992.8579958886. The cubic root of 985767 is about 99.5232978280.

It can be divided in two parts, 9 and 85767, that multiplied together give a triangular number (771903 = T₁₂₄₂).

The spelling of 985767 in words is "nine hundred eighty-five thousand, seven hundred sixty-seven".