6671617 has 2 divisors, whose sum is σ = 6671618. Its totient is φ = 6671616.

The previous prime is 6671597. The next prime is 6671627. The reversal of 6671617 is 7161766.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 112896 = 2561^2 + 336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6671617 is a prime.

It is not a weakly prime, because it can be changed into another prime (6671627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335808 + 3335809.

It is an arithmetic number, because the mean of its divisors is an integer number (3335809).

Almost surely, 2^6671617 is an apocalyptic number.

It is an amenable number.

6671617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671617 is an equidigital number, since it uses as much as digits as its factorization.

6671617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 6671617 is about 2582.9473475083. The cubic root of 6671617 is about 188.2537786708.

The spelling of 6671617 in words is "six million, six hundred seventy-one thousand, six hundred seventeen".