6781032 has 48 divisors (see below), whose sum is σ = 18722340. Its totient is φ = 2216448.

The previous prime is 6781013. The next prime is 6781037. The reversal of 6781032 is 2301876.

It can be written as a sum of positive squares in 2 ways, for example, as 6687396 + 93636 = 2586^2 + 306^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6780987 and 6781005.

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 11 ways as a sum of consecutive naturals, for example, 2928 + ... + 4704.

Almost surely, 2^6781032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6781032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9361170).

6781032 is an abundant number, since it is smaller than the sum of its proper divisors (11941308).

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

6781032 is a wasteful number, since it uses less digits than its factorization.

6781032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 6781032 is about 2604.0414743241. The cubic root of 6781032 is about 189.2773286492.

The spelling of 6781032 in words is "six million, seven hundred eighty-one thousand, thirty-two".