985503564 has 24 divisors (see below), whose sum is σ = 2555009520. Its totient is φ = 328501152.

The previous prime is 985503529. The next prime is 985503569. The reversal of 985503564 is 465305589.

985503564 is a `hidden beast` number, since 9 + 8 + 550 + 35 + 64 = 666.

It is not an unprimeable number, because it can be changed into a prime (985503569) 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, 4562409 + ... + 4562624.

It is an arithmetic number, because the mean of its divisors is an integer number (106458730).

Almost surely, 2^985503564 is an apocalyptic number.

It is an amenable number.

985503564 is an abundant number, since it is smaller than the sum of its proper divisors (1569505956).

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

985503564 is a wasteful number, since it uses less digits than its factorization.

985503564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125046 (or 9125038 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 985503564 is about 31392.7310694689. The cubic root of 985503564 is about 995.1443151533.

The spelling of 985503564 in words is "nine hundred eighty-five million, five hundred three thousand, five hundred sixty-four".