6928643 has 2 divisors, whose sum is σ = 6928644. Its totient is φ = 6928642.

The previous prime is 6928619. The next prime is 6928661. The reversal of 6928643 is 3468296.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6928643 - 2¹⁶ = 6863107 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6928597 and 6928606.

It is not a weakly prime, because it can be changed into another prime (6928043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464321 + 3464322.

It is an arithmetic number, because the mean of its divisors is an integer number (3464322).

Almost surely, 2^6928643 is an apocalyptic number.

6928643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6928643 is an equidigital number, since it uses as much as digits as its factorization.

6928643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 6928643 is about 2632.2315627619. The cubic root of 6928643 is about 190.6408920908.

The spelling of 6928643 in words is "six million, nine hundred twenty-eight thousand, six hundred forty-three".