8538985 has 32 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 5390784.

The previous prime is 8538979. The next prime is 8538991. The reversal of 8538985 is 5898358.

It is an interprime number because it is at equal distance from previous prime (8538979) and next prime (8538991).

It is not a de Polignac number, because 8538985 - 2³ = 8538977 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22104 + ... + 22486.

It is an arithmetic number, because the mean of its divisors is an integer number (403200).

Almost surely, 2^8538985 is an apocalyptic number.

It is an amenable number.

8538985 is a deficient number, since it is larger than the sum of its proper divisors (4363415).

8538985 is a wasteful number, since it uses less digits than its factorization.

8538985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 408 counting only the distinct ones).

The product of its digits is 345600, while the sum is 46.

The square root of 8538985 is about 2922.1541711552. The cubic root of 8538985 is about 204.3942858226.

The spelling of 8538985 in words is "eight million, five hundred thirty-eight thousand, nine hundred eighty-five".