6783738 has 32 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 2014656.

The previous prime is 6783727. The next prime is 6783739. The reversal of 6783738 is 8373876.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6783738.

It is not an unprimeable number, because it can be changed into a prime (6783739) 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 15 ways as a sum of consecutive naturals, for example, 763 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (472500).

Almost surely, 2^6783738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6783738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560000).

6783738 is an abundant number, since it is smaller than the sum of its proper divisors (8336262).

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

6783738 is a wasteful number, since it uses less digits than its factorization.

6783738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046.

The product of its digits is 169344, while the sum is 42.

The square root of 6783738 is about 2604.5609994776. The cubic root of 6783738 is about 189.3025026117.

The spelling of 6783738 in words is "six million, seven hundred eighty-three thousand, seven hundred thirty-eight".