6754721 has 2 divisors, whose sum is σ = 6754722. Its totient is φ = 6754720.

The previous prime is 6754703. The next prime is 6754723. The reversal of 6754721 is 1274576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6574096 + 180625 = 2564^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 6754721 - 2¹⁴ = 6738337 is a prime.

It is a Sophie Germain prime.

Together with 6754723, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6754723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3377360 + 3377361.

It is an arithmetic number, because the mean of its divisors is an integer number (3377361).

Almost surely, 2^6754721 is an apocalyptic number.

It is an amenable number.

6754721 is a deficient number, since it is larger than the sum of its proper divisors (1).

6754721 is an equidigital number, since it uses as much as digits as its factorization.

6754721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 32.

The square root of 6754721 is about 2598.9846094196. The cubic root of 6754721 is about 189.0322071220.

The spelling of 6754721 in words is "six million, seven hundred fifty-four thousand, seven hundred twenty-one".