720923600 has 120 divisors (see below), whose sum is σ = 1827406848. Its totient is φ = 272908800.

The previous prime is 720923591. The next prime is 720923603. The reversal of 720923600 is 6329027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720923603) 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, 582182 + ... + 583418.

Almost surely, 2^720923600 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 720923600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913703424).

720923600 is an abundant number, since it is smaller than the sum of its proper divisors (1106483248).

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

720923600 is a wasteful number, since it uses less digits than its factorization.

720923600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 720923600 is about 26850.0204841635. The cubic root of 720923600 is about 896.6640286510.

The spelling of 720923600 in words is "seven hundred twenty million, nine hundred twenty-three thousand, six hundred".