673718346 has 72 divisors (see below), whose sum is σ = 1771926624. Its totient is φ = 184116240.

The previous prime is 673718333. The next prime is 673718371. The reversal of 673718346 is 643817376.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3681 + ... + 36891.

It is an arithmetic number, because the mean of its divisors is an integer number (24610092).

Almost surely, 2^673718346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673718346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885963312).

673718346 is an abundant number, since it is smaller than the sum of its proper divisors (1098208278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673718346 is a wasteful number, since it uses less digits than its factorization.

673718346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33256 (or 33246 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 673718346 is about 25956.0849513173. The cubic root of 673718346 is about 876.6497728066.

The spelling of 673718346 in words is "six hundred seventy-three million, seven hundred eighteen thousand, three hundred forty-six".