985291604 has 24 divisors (see below), whose sum is σ = 1889465088. Its totient is φ = 445847040.

The previous prime is 985291603. The next prime is 985291609. The reversal of 985291604 is 406192589.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985291603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40397 + ... + 60020.

It is an arithmetic number, because the mean of its divisors is an integer number (78727712).

Almost surely, 2^985291604 is an apocalyptic number.

It is an amenable number.

985291604 is a deficient number, since it is larger than the sum of its proper divisors (904173484).

985291604 is a wasteful number, since it uses less digits than its factorization.

985291604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100655 (or 100653 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 985291604 is about 31389.3549471791. The cubic root of 985291604 is about 995.0729655337.

The spelling of 985291604 in words is "nine hundred eighty-five million, two hundred ninety-one thousand, six hundred four".