6764820 has 48 divisors (see below), whose sum is σ = 19557888. Its totient is φ = 1745280.

The previous prime is 6764777. The next prime is 6764831. The reversal of 6764820 is 284676.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (407456).

Almost surely, 2^6764820 is an apocalyptic number.

6764820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6764820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9778944).

6764820 is an abundant number, since it is smaller than the sum of its proper divisors (12793068).

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

6764820 is a wasteful number, since it uses less digits than its factorization.

6764820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6764820 is about 2600.9267579077. The cubic root of 6764820 is about 189.1263677171.

The spelling of 6764820 in words is "six million, seven hundred sixty-four thousand, eight hundred twenty".