6873121 has 2 divisors, whose sum is σ = 6873122. Its totient is φ = 6873120.

The previous prime is 6873109. The next prime is 6873131. The reversal of 6873121 is 1213786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 3027600 = 1961^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 6873121 - 2⁵ = 6873089 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6873121.

It is not a weakly prime, because it can be changed into another prime (6873131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3436560 + 3436561.

It is an arithmetic number, because the mean of its divisors is an integer number (3436561).

Almost surely, 2^6873121 is an apocalyptic number.

It is an amenable number.

6873121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6873121 is an equidigital number, since it uses as much as digits as its factorization.

6873121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 6873121 is about 2621.6637846986. The cubic root of 6873121 is about 190.1302984350.

The spelling of 6873121 in words is "six million, eight hundred seventy-three thousand, one hundred twenty-one".