6928609 has 2 divisors, whose sum is σ = 6928610. Its totient is φ = 6928608.

The previous prime is 6928541. The next prime is 6928619. The reversal of 6928609 is 9068296.

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., 6477025 + 451584 = 2545^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 6928609 - 2¹⁷ = 6797537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6928619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464304 + 3464305.

It is an arithmetic number, because the mean of its divisors is an integer number (3464305).

Almost surely, 2^6928609 is an apocalyptic number.

It is an amenable number.

6928609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6928609 is an equidigital number, since it uses as much as digits as its factorization.

6928609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 6928609 is about 2632.2251043556. The cubic root of 6928609 is about 190.6405802548.

The spelling of 6928609 in words is "six million, nine hundred twenty-eight thousand, six hundred nine".