6668273 has 2 divisors, whose sum is σ = 6668274. Its totient is φ = 6668272.

The previous prime is 6668269. The next prime is 6668341. The reversal of 6668273 is 3728666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4545424 + 2122849 = 2132^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 6668273 - 2² = 6668269 is a prime.

It is not a weakly prime, because it can be changed into another prime (6668203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3334136 + 3334137.

It is an arithmetic number, because the mean of its divisors is an integer number (3334137).

Almost surely, 2^6668273 is an apocalyptic number.

It is an amenable number.

6668273 is a deficient number, since it is larger than the sum of its proper divisors (1).

6668273 is an equidigital number, since it uses as much as digits as its factorization.

6668273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 6668273 is about 2582.2999438485. The cubic root of 6668273 is about 188.2223207377. Note that the first 3 decimals are identical.

The spelling of 6668273 in words is "six million, six hundred sixty-eight thousand, two hundred seventy-three".