673938843 has 4 divisors (see below), whose sum is σ = 898585128. Its totient is φ = 449292560.

The previous prime is 673938833. The next prime is 673938857. The reversal of 673938843 is 348839376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673938843 - 2⁴ = 673938827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673938833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112323138 + ... + 112323143.

It is an arithmetic number, because the mean of its divisors is an integer number (224646282).

Almost surely, 2^673938843 is an apocalyptic number.

673938843 is a deficient number, since it is larger than the sum of its proper divisors (224646285).

673938843 is a wasteful number, since it uses less digits than its factorization.

673938843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224646284.

The product of its digits is 2612736, while the sum is 51.

The square root of 673938843 is about 25960.3321049635. The cubic root of 673938843 is about 876.7454000877.

The spelling of 673938843 in words is "six hundred seventy-three million, nine hundred thirty-eight thousand, eight hundred forty-three".