6618713 has 2 divisors, whose sum is σ = 6618714. Its totient is φ = 6618712.

The previous prime is 6618701. The next prime is 6618727. The reversal of 6618713 is 3178166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4897369 + 1721344 = 2213^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 6618713 - 2¹² = 6614617 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6618713.

It is not a weakly prime, because it can be changed into another prime (6618013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3309356 + 3309357.

It is an arithmetic number, because the mean of its divisors is an integer number (3309357).

Almost surely, 2^6618713 is an apocalyptic number.

It is an amenable number.

6618713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6618713 is an equidigital number, since it uses as much as digits as its factorization.

6618713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 6618713 is about 2572.6859505194. The cubic root of 6618713 is about 187.7548581695.

The spelling of 6618713 in words is "six million, six hundred eighteen thousand, seven hundred thirteen".