6491992 has 16 divisors (see below), whose sum is σ = 13109040. Its totient is φ = 2996256.

The previous prime is 6491971. The next prime is 6491993. The reversal of 6491992 is 2991946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491993) 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 3 ways as a sum of consecutive naturals, for example, 31108 + ... + 31315.

It is an arithmetic number, because the mean of its divisors is an integer number (819315).

Almost surely, 2^6491992 is an apocalyptic number.

It is an amenable number.

6491992 is an abundant number, since it is smaller than the sum of its proper divisors (6617048).

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

6491992 is a wasteful number, since it uses less digits than its factorization.

6491992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62442 (or 62438 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The square root of 6491992 is about 2547.9387747746. The cubic root of 6491992 is about 186.5488854497.

The spelling of 6491992 in words is "six million, four hundred ninety-one thousand, nine hundred ninety-two".