720869760 has 256 divisors, whose sum is σ = 2750328000. Its totient is φ = 177389568.

The previous prime is 720869719. The next prime is 720869761. The reversal of 720869760 is 67968027.

It is a happy number.

720869760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720869761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223036 + ... + 226244.

Almost surely, 2^720869760 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 720869760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375164000).

720869760 is an abundant number, since it is smaller than the sum of its proper divisors (2029458240).

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

720869760 is a wasteful number, since it uses less digits than its factorization.

720869760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250 (or 3232 counting only the distinct ones).

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

The square root of 720869760 is about 26849.0178591322. The cubic root of 720869760 is about 896.6417065477.

The spelling of 720869760 in words is "seven hundred twenty million, eight hundred sixty-nine thousand, seven hundred sixty".