6490806 has 16 divisors (see below), whose sum is σ = 14836224. Its totient is φ = 1854504.

The previous prime is 6490801. The next prime is 6490817. The reversal of 6490806 is 6080946.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490801) 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 7 ways as a sum of consecutive naturals, for example, 77230 + ... + 77313.

It is an arithmetic number, because the mean of its divisors is an integer number (927264).

Almost surely, 2^6490806 is an apocalyptic number.

6490806 is an abundant number, since it is smaller than the sum of its proper divisors (8345418).

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

6490806 is a wasteful number, since it uses less digits than its factorization.

6490806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154555.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 6490806 is about 2547.7060269976. The cubic root of 6490806 is about 186.5375247635.

The spelling of 6490806 in words is "six million, four hundred ninety thousand, eight hundred six".