6781038 has 32 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 2036160.

The previous prime is 6781037. The next prime is 6781051. The reversal of 6781038 is 8301876.

6781038 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781037) 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, 7978 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (466560).

Almost surely, 2^6781038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6781038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7464960).

6781038 is an abundant number, since it is smaller than the sum of its proper divisors (8148882).

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

6781038 is a wasteful number, since it uses less digits than its factorization.

6781038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 6781038 is about 2604.0426263792. The cubic root of 6781038 is about 189.2773844747.

The spelling of 6781038 in words is "six million, seven hundred eighty-one thousand, thirty-eight".