6720473 has 2 divisors, whose sum is σ = 6720474. Its totient is φ = 6720472.

The previous prime is 6720443. The next prime is 6720481. The reversal of 6720473 is 3740276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3717184 + 3003289 = 1928^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 6720473 - 2⁶ = 6720409 is a prime.

It is a d-powerful number, because it can be written as 6 + 7⁷ + 2¹⁷ + 0 + 4⁵ + 7⁸ + 3³ .

It is not a weakly prime, because it can be changed into another prime (6720403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360236 + 3360237.

It is an arithmetic number, because the mean of its divisors is an integer number (3360237).

Almost surely, 2^6720473 is an apocalyptic number.

It is an amenable number.

6720473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720473 is an equidigital number, since it uses as much as digits as its factorization.

6720473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 6720473 is about 2592.3875096135. The cubic root of 6720473 is about 188.7121866271.

The spelling of 6720473 in words is "six million, seven hundred twenty thousand, four hundred seventy-three".