6645179 has 4 divisors (see below), whose sum is σ = 6713784. Its totient is φ = 6576576.

The previous prime is 6645169. The next prime is 6645187. The reversal of 6645179 is 9715466.

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

It is a cyclic number.

It is not a de Polignac number, because 6645179 - 2¹² = 6641083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6645139) 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, 34157 + ... + 34350.

It is an arithmetic number, because the mean of its divisors is an integer number (1678446).

Almost surely, 2^6645179 is an apocalyptic number.

6645179 is a deficient number, since it is larger than the sum of its proper divisors (68605).

6645179 is an equidigital number, since it uses as much as digits as its factorization.

6645179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68604.

The product of its digits is 45360, while the sum is 38.

The square root of 6645179 is about 2577.8244703626. The cubic root of 6645179 is about 188.0047814538.

The spelling of 6645179 in words is "six million, six hundred forty-five thousand, one hundred seventy-nine".