667273 has 2 divisors, whose sum is σ = 667274. Its totient is φ = 667272.

The previous prime is 667243. The next prime is 667283. The reversal of 667273 is 372766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595984 + 71289 = 772^2 + 267^2 .

It is a cyclic number.

It is not a de Polignac number, because 667273 - 2⁵ = 667241 is a prime.

It is not a weakly prime, because it can be changed into another prime (667243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333636 + 333637.

It is an arithmetic number, because the mean of its divisors is an integer number (333637).

2⁶⁶⁷²⁷³ is an apocalyptic number.

It is an amenable number.

667273 is a deficient number, since it is larger than the sum of its proper divisors (1).

667273 is an equidigital number, since it uses as much as digits as its factorization.

667273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 667273 is about 816.8677983615. The cubic root of 667273 is about 87.3845224964.

The spelling of 667273 in words is "six hundred sixty-seven thousand, two hundred seventy-three".