985391968 has 24 divisors (see below), whose sum is σ = 2116353960. Its totient is φ = 447905280.

The previous prime is 985391959. The next prime is 985391971. The reversal of 985391968 is 869193589.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1399353 + ... + 1400056.

It is an arithmetic number, because the mean of its divisors is an integer number (88181415).

Almost surely, 2^985391968 is an apocalyptic number.

It is an amenable number.

985391968 is an abundant number, since it is smaller than the sum of its proper divisors (1130961992).

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

985391968 is a wasteful number, since it uses less digits than its factorization.

985391968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799430 (or 2799422 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The square root of 985391968 is about 31390.9536013164. The cubic root of 985391968 is about 995.1067511704.

The spelling of 985391968 in words is "nine hundred eighty-five million, three hundred ninety-one thousand, nine hundred sixty-eight".