6613147 has 4 divisors (see below), whose sum is σ = 6618640. Its totient is φ = 6607656.

The previous prime is 6613141. The next prime is 6613151. The reversal of 6613147 is 7413166.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6613147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6613141) 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, 72 + ... + 3637.

It is an arithmetic number, because the mean of its divisors is an integer number (1654660).

Almost surely, 2^6613147 is an apocalyptic number.

6613147 is a deficient number, since it is larger than the sum of its proper divisors (5493).

6613147 is a wasteful number, since it uses less digits than its factorization.

6613147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492.

The product of its digits is 3024, while the sum is 28.

The square root of 6613147 is about 2571.6039741764. The cubic root of 6613147 is about 187.7022126566.

The spelling of 6613147 in words is "six million, six hundred thirteen thousand, one hundred forty-seven".