673656312 has 96 divisors (see below), whose sum is σ = 2026760400. Its totient is φ = 185826816.

The previous prime is 673656301. The next prime is 673656329. The reversal of 673656312 is 213656376.

673656312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24228 + ... + 43980.

Almost surely, 2^673656312 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 673656312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013380200).

673656312 is an abundant number, since it is smaller than the sum of its proper divisors (1353104088).

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

673656312 is a wasteful number, since it uses less digits than its factorization.

673656312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19805 (or 19794 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 673656312 is about 25954.8899439007. The cubic root of 673656312 is about 876.6228655381.

The spelling of 673656312 in words is "six hundred seventy-three million, six hundred fifty-six thousand, three hundred twelve".