6820973 has 2 divisors, whose sum is σ = 6820974. Its totient is φ = 6820972.

The previous prime is 6820967. The next prime is 6820991. The reversal of 6820973 is 3790286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6568969 + 252004 = 2563^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 6820973 - 2⁶ = 6820909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6820993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410486 + 3410487.

It is an arithmetic number, because the mean of its divisors is an integer number (3410487).

Almost surely, 2^6820973 is an apocalyptic number.

It is an amenable number.

6820973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6820973 is an equidigital number, since it uses as much as digits as its factorization.

6820973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6820973 is about 2611.6992552742. The cubic root of 6820973 is about 189.6482225997.

The spelling of 6820973 in words is "six million, eight hundred twenty thousand, nine hundred seventy-three".