6491006 has 4 divisors (see below), whose sum is σ = 9736512. Its totient is φ = 3245502.

The previous prime is 6490999. The next prime is 6491011. The reversal of 6491006 is 6001946.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622750 + ... + 1622753.

It is an arithmetic number, because the mean of its divisors is an integer number (2434128).

Almost surely, 2^6491006 is an apocalyptic number.

6491006 is a deficient number, since it is larger than the sum of its proper divisors (3245506).

6491006 is a wasteful number, since it uses less digits than its factorization.

6491006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245505.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6491006 is about 2547.7452776916. The cubic root of 6491006 is about 186.5394406591.

The spelling of 6491006 in words is "six million, four hundred ninety-one thousand, six".