985117620 has 24 divisors (see below), whose sum is σ = 2758329504. Its totient is φ = 262698016.

The previous prime is 985117607. The next prime is 985117663. The reversal of 985117620 is 26711589.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8209254 + ... + 8209373.

It is an arithmetic number, because the mean of its divisors is an integer number (114930396).

Almost surely, 2^985117620 is an apocalyptic number.

It is an amenable number.

985117620 is an abundant number, since it is smaller than the sum of its proper divisors (1773211884).

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

985117620 is a wasteful number, since it uses less digits than its factorization.

985117620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418639 (or 16418637 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 985117620 is about 31386.5834394252. The cubic root of 985117620 is about 995.0143916843.

The spelling of 985117620 in words is "nine hundred eighty-five million, one hundred seventeen thousand, six hundred twenty".