673816803 has 16 divisors (see below), whose sum is σ = 980626176. Its totient is φ = 408153440.

The previous prime is 673816729. The next prime is 673816883. The reversal of 673816803 is 308618376.

It is a cyclic number.

It is not a de Polignac number, because 673816803 - 2⁸ = 673816547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673816883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73450 + ... + 82112.

It is an arithmetic number, because the mean of its divisors is an integer number (61289136).

Almost surely, 2^673816803 is an apocalyptic number.

673816803 is a deficient number, since it is larger than the sum of its proper divisors (306809373).

673816803 is a wasteful number, since it uses less digits than its factorization.

673816803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11034.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 673816803 is about 25957.9814893223. The cubic root of 673816803 is about 876.6924751727.

The spelling of 673816803 in words is "six hundred seventy-three million, eight hundred sixteen thousand, eight hundred three".