985531853 has 8 divisors (see below), whose sum is σ = 1063843200. Its totient is φ = 910175728.

The previous prime is 985531847. The next prime is 985531907. The reversal of 985531853 is 358135589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 985531853 - 2²² = 981337549 is a prime.

It is a super-2 number, since 2×985531853² = 1942546066555227218, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 985531798 and 985531807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985531453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738113 + ... + 739446.

It is an arithmetic number, because the mean of its divisors is an integer number (132980400).

Almost surely, 2^985531853 is an apocalyptic number.

It is an amenable number.

985531853 is a deficient number, since it is larger than the sum of its proper divisors (78311347).

985531853 is a wasteful number, since it uses less digits than its factorization.

985531853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477611.

The product of its digits is 648000, while the sum is 47.

The square root of 985531853 is about 31393.1816323226. The cubic root of 985531853 is about 995.1538369751.

The spelling of 985531853 in words is "nine hundred eighty-five million, five hundred thirty-one thousand, eight hundred fifty-three".