673864212 has 96 divisors (see below), whose sum is σ = 1896652800. Its totient is φ = 182045952.

The previous prime is 673864211. The next prime is 673864231. The reversal of 673864212 is 212468376.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673864211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169989 + ... + 173907.

It is an arithmetic number, because the mean of its divisors is an integer number (19756800).

Almost surely, 2^673864212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673864212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948326400).

673864212 is an abundant number, since it is smaller than the sum of its proper divisors (1222788588).

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

673864212 is a wasteful number, since it uses less digits than its factorization.

673864212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4043 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 673864212 is about 25958.8946605976. The cubic root of 673864212 is about 876.7130357260.

The spelling of 673864212 in words is "six hundred seventy-three million, eight hundred sixty-four thousand, two hundred twelve".