6490844 has 6 divisors (see below), whose sum is σ = 11358984. Its totient is φ = 3245420.

The previous prime is 6490831. The next prime is 6490871. The reversal of 6490844 is 4480946.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 811352 + ... + 811359.

It is an arithmetic number, because the mean of its divisors is an integer number (1893164).

Almost surely, 2^6490844 is an apocalyptic number.

It is an amenable number.

6490844 is a deficient number, since it is larger than the sum of its proper divisors (4868140).

6490844 is a wasteful number, since it uses less digits than its factorization.

6490844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622715 (or 1622713 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 6490844 is about 2547.7134846760. The cubic root of 6490844 is about 186.5378887867.

The spelling of 6490844 in words is "six million, four hundred ninety thousand, eight hundred forty-four".