6611345 has 16 divisors (see below), whose sum is σ = 8778000. Its totient is φ = 4748544.

The previous prime is 6611329. The next prime is 6611347. The reversal of 6611345 is 5431166.

6611345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 421201 + 6190144 = 649^2 + 2488^2 .

It is a cyclic number.

It is not a de Polignac number, because 6611345 - 2⁴ = 6611329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6611347) 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, 1031 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (548625).

Almost surely, 2^6611345 is an apocalyptic number.

6611345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6611345 is a deficient number, since it is larger than the sum of its proper divisors (2166655).

6611345 is a wasteful number, since it uses less digits than its factorization.

6611345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804.

The product of its digits is 2160, while the sum is 26.

The square root of 6611345 is about 2571.2535853159. The cubic root of 6611345 is about 187.6851622713.

It can be divided in two parts, 66 and 11345, that added together give a palindrome (11411).

The spelling of 6611345 in words is "six million, six hundred eleven thousand, three hundred forty-five".