6613345 has 4 divisors (see below), whose sum is σ = 7936020. Its totient is φ = 5290672.

The previous prime is 6613339. The next prime is 6613361. The reversal of 6613345 is 5433166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5230369 + 1382976 = 2287^2 + 1176^2 .

It is a cyclic number.

It is not a de Polignac number, because 6613345 - 2³ = 6613337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661330 + ... + 661339.

It is an arithmetic number, because the mean of its divisors is an integer number (1984005).

Almost surely, 2^6613345 is an apocalyptic number.

It is an amenable number.

6613345 is a deficient number, since it is larger than the sum of its proper divisors (1322675).

6613345 is a wasteful number, since it uses less digits than its factorization.

6613345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322674.

The product of its digits is 6480, while the sum is 28.

The square root of 6613345 is about 2571.6424712623. The cubic root of 6613345 is about 187.7040859285.

The spelling of 6613345 in words is "six million, six hundred thirteen thousand, three hundred forty-five".