673943203 has 2 divisors, whose sum is σ = 673943204. Its totient is φ = 673943202.

The previous prime is 673943201. The next prime is 673943213. The reversal of 673943203 is 302349376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673943203 - 2¹ = 673943201 is a prime.

Together with 673943201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (673943201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336971601 + 336971602.

It is an arithmetic number, because the mean of its divisors is an integer number (336971602).

Almost surely, 2^673943203 is an apocalyptic number.

673943203 is a deficient number, since it is larger than the sum of its proper divisors (1).

673943203 is an equidigital number, since it uses as much as digits as its factorization.

673943203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 673943203 is about 25960.4160791001. The cubic root of 673943203 is about 876.7472907645.

The spelling of 673943203 in words is "six hundred seventy-three million, nine hundred forty-three thousand, two hundred three".