985595904 has 136 divisors (see below), whose sum is σ = 2925504720. Its totient is φ = 327942144.

The previous prime is 985595903. The next prime is 985595909. The reversal of 985595904 is 409595589.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985595903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769194 + ... + 1769750.

Almost surely, 2^985595904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985595904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462752360).

985595904 is an abundant number, since it is smaller than the sum of its proper divisors (1939908816).

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

985595904 is an frugal number, since it uses more digits than its factorization.

985595904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 54.

The square root of 985595904 is about 31394.2017576495. The cubic root of 985595904 is about 995.1753952899.

The spelling of 985595904 in words is "nine hundred eighty-five million, five hundred ninety-five thousand, nine hundred four".