672268673 has 2 divisors, whose sum is σ = 672268674. Its totient is φ = 672268672.

The previous prime is 672268669. The next prime is 672268693. The reversal of 672268673 is 376862276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466862449 + 205406224 = 21607^2 + 14332^2 .

It is a cyclic number.

It is not a de Polignac number, because 672268673 - 2² = 672268669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (672268603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336134336 + 336134337.

It is an arithmetic number, because the mean of its divisors is an integer number (336134337).

Almost surely, 2^672268673 is an apocalyptic number.

It is an amenable number.

672268673 is a deficient number, since it is larger than the sum of its proper divisors (1).

672268673 is an equidigital number, since it uses as much as digits as its factorization.

672268673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 47.

The square root of 672268673 is about 25928.1444187585. The cubic root of 672268673 is about 876.0205444227.

The spelling of 672268673 in words is "six hundred seventy-two million, two hundred sixty-eight thousand, six hundred seventy-three".