6781066 has 8 divisors (see below), whose sum is σ = 10388160. Its totient is φ = 3318348.

The previous prime is 6781063. The next prime is 6781087. The reversal of 6781066 is 6601876.

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

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (6781063) 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, 35976 + ... + 36163.

It is an arithmetic number, because the mean of its divisors is an integer number (1298520).

Almost surely, 2^6781066 is an apocalyptic number.

6781066 is a deficient number, since it is larger than the sum of its proper divisors (3607094).

6781066 is a wasteful number, since it uses less digits than its factorization.

6781066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72188.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 6781066 is about 2604.0480026298. The cubic root of 6781066 is about 189.2776449933.

It can be divided in two parts, 67810 and 66, that added together give a palindrome (67876).

The spelling of 6781066 in words is "six million, seven hundred eighty-one thousand, sixty-six".