8985605 has 16 divisors (see below), whose sum is σ = 11610864. Its totient is φ = 6650880.

The previous prime is 8985593. The next prime is 8985607. The reversal of 8985605 is 5065898.

It can be written as a sum of positive squares in 8 ways, for example, as 564001 + 8421604 = 751^2 + 2902^2 .

It is not a de Polignac number, because 8985605 - 2⁴ = 8985589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8985607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4319 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (725679).

Almost surely, 2^8985605 is an apocalyptic number.

8985605 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8985605 is a deficient number, since it is larger than the sum of its proper divisors (2625259).

8985605 is a wasteful number, since it uses less digits than its factorization.

8985605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 8985605 is about 2997.5998732319. The cubic root of 8985605 is about 207.8974238430.

The spelling of 8985605 in words is "eight million, nine hundred eighty-five thousand, six hundred five".