8500005 has 32 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 4470336.

The previous prime is 8499979. The next prime is 8500007. The reversal of 8500005 is 5000058.

It is not a de Polignac number, because 8500005 - 2⁷ = 8499877 is a prime.

8500005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10267 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^8500005 is an apocalyptic number.

It is an amenable number.

8500005 is a deficient number, since it is larger than the sum of its proper divisors (6821595).

8500005 is a wasteful number, since it uses less digits than its factorization.

8500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 8500005 is about 2915.4768049154. The cubic root of 8500005 is about 204.0827951121.

The spelling of 8500005 in words is "eight million, five hundred thousand, five".