6479609 has 2 divisors, whose sum is σ = 6479610. Its totient is φ = 6479608.

The previous prime is 6479593. The next prime is 6479617. The reversal of 6479609 is 9069746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6017209 + 462400 = 2453^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 6479609 - 2⁴ = 6479593 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6³ + 4⁷ + 7³ + 9² + 6⁸ + 0 + 9⁷ .

It is not a weakly prime, because it can be changed into another prime (6479509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239804 + 3239805.

It is an arithmetic number, because the mean of its divisors is an integer number (3239805).

Almost surely, 2^6479609 is an apocalyptic number.

It is an amenable number.

6479609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6479609 is an equidigital number, since it uses as much as digits as its factorization.

6479609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 6479609 is about 2545.5076114598. The cubic root of 6479609 is about 186.4302005043.

The spelling of 6479609 in words is "six million, four hundred seventy-nine thousand, six hundred nine".