985289605 has 16 divisors (see below), whose sum is σ = 1204533504. Its totient is φ = 773530560.

The previous prime is 985289581. The next prime is 985289633. The reversal of 985289605 is 506982589.

It is not a de Polignac number, because 985289605 - 2⁹ = 985289093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85359 + ... + 96211.

It is an arithmetic number, because the mean of its divisors is an integer number (75283344).

Almost surely, 2^985289605 is an apocalyptic number.

It is an amenable number.

985289605 is a deficient number, since it is larger than the sum of its proper divisors (219243899).

985289605 is a wasteful number, since it uses less digits than its factorization.

985289605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The square root of 985289605 is about 31389.3231051579. The cubic root of 985289605 is about 995.0722925850.

The spelling of 985289605 in words is "nine hundred eighty-five million, two hundred eighty-nine thousand, six hundred five".