6616147 has 6 divisors (see below), whose sum is σ = 6853028. Its totient is φ = 6387192.

The previous prime is 6616139. The next prime is 6616151. The reversal of 6616147 is 7416166.

It is not a de Polignac number, because 6616147 - 2³ = 6616139 is a prime.

It is a super-2 number, since 2×6616147² = 87546802251218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6616117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3093 + ... + 4774.

Almost surely, 2^6616147 is an apocalyptic number.

6616147 is a deficient number, since it is larger than the sum of its proper divisors (236881).

6616147 is an equidigital number, since it uses as much as digits as its factorization.

6616147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7925 (or 7896 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 6616147 is about 2572.1872015855. The cubic root of 6616147 is about 187.7305915565.

The spelling of 6616147 in words is "six million, six hundred sixteen thousand, one hundred forty-seven".