673444433 has 2 divisors, whose sum is σ = 673444434. Its totient is φ = 673444432.

The previous prime is 673444381. The next prime is 673444441. The reversal of 673444433 is 334444376.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648364369 + 25080064 = 25463^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 673444433 - 2²⁴ = 656667217 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 (673444463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336722216 + 336722217.

It is an arithmetic number, because the mean of its divisors is an integer number (336722217).

Almost surely, 2^673444433 is an apocalyptic number.

It is an amenable number.

673444433 is a deficient number, since it is larger than the sum of its proper divisors (1).

673444433 is an equidigital number, since it uses as much as digits as its factorization.

673444433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 38.

The square root of 673444433 is about 25950.8079450332. The cubic root of 673444433 is about 876.5309504923.

The spelling of 673444433 in words is "six hundred seventy-three million, four hundred forty-four thousand, four hundred thirty-three".