6820446 has 8 divisors (see below), whose sum is σ = 13640904. Its totient is φ = 2273480.

The previous prime is 6820441. The next prime is 6820483. The reversal of 6820446 is 6440286.

It is a sphenic number, since it is the product of 3 distinct primes.

6820446 is an admirable number.

It is a super-3 number, since 3×6820446³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568365 + ... + 568376.

It is an arithmetic number, because the mean of its divisors is an integer number (1705113).

Almost surely, 2^6820446 is an apocalyptic number.

6820446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6820446 is a wasteful number, since it uses less digits than its factorization.

6820446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136746.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 6820446 is about 2611.5983611574. The cubic root of 6820446 is about 189.6433382923.

The spelling of 6820446 in words is "six million, eight hundred twenty thousand, four hundred forty-six".