6531798 has 48 divisors (see below), whose sum is σ = 16374960. Its totient is φ = 1721664.

The previous prime is 6531797. The next prime is 6531857. The reversal of 6531798 is 8971356.

It is a super-2 number, since 2×6531798² = 85328770225608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531797) 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 23 ways as a sum of consecutive naturals, for example, 2968 + ... + 4676.

It is an arithmetic number, because the mean of its divisors is an integer number (341145).

Almost surely, 2^6531798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6531798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8187480).

6531798 is an abundant number, since it is smaller than the sum of its proper divisors (9843162).

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

6531798 is a wasteful number, since it uses less digits than its factorization.

6531798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741 (or 1734 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 6531798 is about 2555.7382495083. The cubic root of 6531798 is about 186.9293870104.

The spelling of 6531798 in words is "six million, five hundred thirty-one thousand, seven hundred ninety-eight".