6379820 has 48 divisors (see below), whose sum is σ = 14327040. Its totient is φ = 2379456.

The previous prime is 6379819. The next prime is 6379829. The reversal of 6379820 is 289736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6379829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39059 + ... + 39221.

It is an arithmetic number, because the mean of its divisors is an integer number (298480).

Almost surely, 2^6379820 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 6379820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7163520).

6379820 is an abundant number, since it is smaller than the sum of its proper divisors (7947220).

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

6379820 is a wasteful number, since it uses less digits than its factorization.

6379820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6379820 is about 2525.8305564705. The cubic root of 6379820 is about 185.4682077535.

The spelling of 6379820 in words is "six million, three hundred seventy-nine thousand, eight hundred twenty".