985331 has 2 divisors, whose sum is σ = 985332. Its totient is φ = 985330.

The previous prime is 985307. The next prime is 985339. The reversal of 985331 is 133589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985331 - 2¹⁰ = 984307 is a prime.

It is a super-2 number, since 2×985331² = 1941754359122, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 985294 and 985303.

It is not a weakly prime, because it can be changed into another prime (985339) 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 as a sum of consecutive naturals, namely, 492665 + 492666.

It is an arithmetic number, because the mean of its divisors is an integer number (492666).

2⁹⁸⁵³³¹ is an apocalyptic number.

985331 is a deficient number, since it is larger than the sum of its proper divisors (1).

985331 is an equidigital number, since it uses as much as digits as its factorization.

985331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 985331 is about 992.6384034481. The cubic root of 985331 is about 99.5086227723.

The spelling of 985331 in words is "nine hundred eighty-five thousand, three hundred thirty-one".