8490906 has 24 divisors (see below), whose sum is σ = 19079424. Its totient is φ = 2830140.

The previous prime is 8490901. The next prime is 8490913. The reversal of 8490906 is 6090948.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8490901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8250 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (794976).

Almost surely, 2^8490906 is an apocalyptic number.

8490906 is an abundant number, since it is smaller than the sum of its proper divisors (10588518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8490906 is a wasteful number, since it uses less digits than its factorization.

8490906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17488 (or 17476 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8490906 is about 2913.9159219168. The cubic root of 8490906 is about 204.0099476118.

The spelling of 8490906 in words is "eight million, four hundred ninety thousand, nine hundred six".