6491263 has 8 divisors (see below), whose sum is σ = 6903360. Its totient is φ = 6082560.

The previous prime is 6491257. The next prime is 6491299. The reversal of 6491263 is 3621946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6491263 - 2⁵ = 6491231 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491213) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3903 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (862920).

Almost surely, 2^6491263 is an apocalyptic number.

6491263 is a deficient number, since it is larger than the sum of its proper divisors (412097).

6491263 is a wasteful number, since it uses less digits than its factorization.

6491263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697.

The product of its digits is 7776, while the sum is 31.

The square root of 6491263 is about 2547.7957139457. The cubic root of 6491263 is about 186.5419025273.

The spelling of 6491263 in words is "six million, four hundred ninety-one thousand, two hundred sixty-three".