985560681 has 16 divisors (see below), whose sum is σ = 1502275968. Its totient is φ = 563001600.

The previous prime is 985560661. The next prime is 985560689. The reversal of 985560681 is 186065589.

It is not a de Polignac number, because 985560681 - 2⁶ = 985560617 is a prime.

It is a super-2 number, since 2×985560681² = 1942659711866367522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 985560681.

It is not an unprimeable number, because it can be changed into a prime (985560689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94171 + ... + 104111.

It is an arithmetic number, because the mean of its divisors is an integer number (93892248).

Almost surely, 2^985560681 is an apocalyptic number.

It is an amenable number.

985560681 is a deficient number, since it is larger than the sum of its proper divisors (516715287).

985560681 is a wasteful number, since it uses less digits than its factorization.

985560681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14672.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 985560681 is about 31393.6407732522. The cubic root of 985560681 is about 995.1635400321.

The spelling of 985560681 in words is "nine hundred eighty-five million, five hundred sixty thousand, six hundred eighty-one".