6339820 has 12 divisors (see below), whose sum is σ = 13313664. Its totient is φ = 2535920.

The previous prime is 6339811. The next prime is 6339847. The reversal of 6339820 is 289336.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158476 + ... + 158515.

It is an arithmetic number, because the mean of its divisors is an integer number (1109472).

Almost surely, 2^6339820 is an apocalyptic number.

It is an amenable number.

6339820 is an abundant number, since it is smaller than the sum of its proper divisors (6973844).

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

6339820 is a wasteful number, since it uses less digits than its factorization.

6339820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317000 (or 316998 counting only the distinct ones).

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

The square root of 6339820 is about 2517.8999185829. The cubic root of 6339820 is about 185.0797805401.

The spelling of 6339820 in words is "six million, three hundred thirty-nine thousand, eight hundred twenty".