6720973 has 4 divisors (see below), whose sum is σ = 7681120. Its totient is φ = 5760828.

The previous prime is 6720947. The next prime is 6721009. The reversal of 6720973 is 3790276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6720973 - 2⁵ = 6720941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720173) 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 in 3 ways as a sum of consecutive naturals, for example, 480063 + ... + 480076.

It is an arithmetic number, because the mean of its divisors is an integer number (1920280).

Almost surely, 2^6720973 is an apocalyptic number.

It is an amenable number.

6720973 is a deficient number, since it is larger than the sum of its proper divisors (960147).

6720973 is an equidigital number, since it uses as much as digits as its factorization.

6720973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960146.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 6720973 is about 2592.4839440197. The cubic root of 6720973 is about 188.7168665434.

The spelling of 6720973 in words is "six million, seven hundred twenty thousand, nine hundred seventy-three".