985616 has 20 divisors (see below), whose sum is σ = 1925100. Its totient is φ = 488832.

The previous prime is 985613. The next prime is 985631. The reversal of 985616 is 616589.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 495616 = 700^2 + 704^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (985613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530 + ... + 3798.

It is an arithmetic number, because the mean of its divisors is an integer number (96255).

2⁹⁸⁵⁶¹⁶ is an apocalyptic number.

It is an amenable number.

985616 is a deficient number, since it is larger than the sum of its proper divisors (939484).

985616 is a wasteful number, since it uses less digits than its factorization.

985616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 500 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 985616 is about 992.7819498762. The cubic root of 985616 is about 99.5182159018.

The spelling of 985616 in words is "nine hundred eighty-five thousand, six hundred sixteen".