985971 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 543648.

The previous prime is 985969. The next prime is 985973. The reversal of 985971 is 179589.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (985969) and next prime (985973).

It is not a de Polignac number, because 985971 - 2¹ = 985969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (985973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁹⁸⁵⁹⁷¹ is an apocalyptic number.

985971 is a deficient number, since it is larger than the sum of its proper divisors (569229).

985971 is a wasteful number, since it uses less digits than its factorization.

985971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its digits is 22680, while the sum is 39.

The square root of 985971 is about 992.9607242988. The cubic root of 985971 is about 99.5301626525.

The spelling of 985971 in words is "nine hundred eighty-five thousand, nine hundred seventy-one".