673711668 has 72 divisors (see below), whose sum is σ = 2018382912. Its totient is φ = 192487104.

The previous prime is 673711667. The next prime is 673711681. The reversal of 673711668 is 866117376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673711663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42705 + ... + 56312.

It is an arithmetic number, because the mean of its divisors is an integer number (28033096).

Almost surely, 2^673711668 is an apocalyptic number.

It is an amenable number.

673711668 is an abundant number, since it is smaller than the sum of its proper divisors (1344671244).

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

673711668 is a wasteful number, since it uses less digits than its factorization.

673711668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99043 (or 99029 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 673711668 is about 25955.9563106428. The cubic root of 673711668 is about 876.6468763012.

The spelling of 673711668 in words is "six hundred seventy-three million, seven hundred eleven thousand, six hundred sixty-eight".