6591996 has 48 divisors (see below), whose sum is σ = 17364480. Its totient is φ = 2162160.

The previous prime is 6591989. The next prime is 6592009. The reversal of 6591996 is 6991956.

It is a super-2 number, since 2×6591996² = 86908822528032, which contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 6781 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (361760).

Almost surely, 2^6591996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6591996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8682240).

6591996 is an abundant number, since it is smaller than the sum of its proper divisors (10772484).

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

6591996 is a wasteful number, since it uses less digits than its factorization.

6591996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 983 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 6591996 is about 2567.4882667697. The cubic root of 6591996 is about 187.5018879810.

The spelling of 6591996 in words is "six million, five hundred ninety-one thousand, nine hundred ninety-six".