712666320 has 80 divisors (see below), whose sum is σ = 2219084160. Its totient is φ = 189199872.

The previous prime is 712666309. The next prime is 712666327. The reversal of 712666320 is 23666217.

712666320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712666327) 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, 48477 + ... + 61443.

It is an arithmetic number, because the mean of its divisors is an integer number (27738552).

Almost surely, 2^712666320 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 712666320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109542080).

712666320 is an abundant number, since it is smaller than the sum of its proper divisors (1506417840).

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

712666320 is a wasteful number, since it uses less digits than its factorization.

712666320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13212 (or 13206 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 712666320 is about 26695.8109073315. The cubic root of 712666320 is about 893.2274855407.

The spelling of 712666320 in words is "seven hundred twelve million, six hundred sixty-six thousand, three hundred twenty".