985859620 has 24 divisors (see below), whose sum is σ = 2077790904. Its totient is φ = 392918016.

The previous prime is 985859599. The next prime is 985859627. The reversal of 985859620 is 26958589.

It can be written as a sum of positive squares in 4 ways, for example, as 401956 + 985457664 = 634^2 + 31392^2 .

It is not an unprimeable number, because it can be changed into a prime (985859627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83437 + ... + 94516.

It is an arithmetic number, because the mean of its divisors is an integer number (86574621).

Almost surely, 2^985859620 is an apocalyptic number.

It is an amenable number.

985859620 is an abundant number, since it is smaller than the sum of its proper divisors (1091931284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985859620 is a wasteful number, since it uses less digits than its factorization.

985859620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178239 (or 178237 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 52.

The square root of 985859620 is about 31398.4015516714. The cubic root of 985859620 is about 995.2641471031.

The spelling of 985859620 in words is "nine hundred eighty-five million, eight hundred fifty-nine thousand, six hundred twenty".