806490906 has 32 divisors (see below), whose sum is σ = 1812585600. Its totient is φ = 237361344.

The previous prime is 806490871. The next prime is 806490953. The reversal of 806490906 is 609094608.

It is a Curzon 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, 222981 + ... + 226568.

It is an arithmetic number, because the mean of its divisors is an integer number (56643300).

Almost surely, 2^806490906 is an apocalyptic number.

806490906 is an abundant number, since it is smaller than the sum of its proper divisors (1006094694).

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

806490906 is a wasteful number, since it uses less digits than its factorization.

806490906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449590.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 806490906 is about 28398.7835302852. The cubic root of 806490906 is about 930.8216833310.

The spelling of 806490906 in words is "eight hundred six million, four hundred ninety thousand, nine hundred six".