6579977 has 2 divisors, whose sum is σ = 6579978. Its totient is φ = 6579976.

The previous prime is 6579961. The next prime is 6580019. The reversal of 6579977 is 7799756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5973136 + 606841 = 2444^2 + 779^2 .

It is a cyclic number.

It is not a de Polignac number, because 6579977 - 2⁴ = 6579961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6579907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3289988 + 3289989.

It is an arithmetic number, because the mean of its divisors is an integer number (3289989).

Almost surely, 2^6579977 is an apocalyptic number.

It is an amenable number.

6579977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6579977 is an equidigital number, since it uses as much as digits as its factorization.

6579977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 833490, while the sum is 50.

The square root of 6579977 is about 2565.1465845055. The cubic root of 6579977 is about 187.3878630224.

The spelling of 6579977 in words is "six million, five hundred seventy-nine thousand, nine hundred seventy-seven".