721080600 has 96 divisors (see below), whose sum is σ = 2253189120. Its totient is φ = 190753920.

The previous prime is 721080589. The next prime is 721080601. The reversal of 721080600 is 6080127.

721080600 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 (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721080601) 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, 71469 + ... + 80931.

It is an arithmetic number, because the mean of its divisors is an integer number (23470720).

Almost surely, 2^721080600 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 721080600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126594560).

721080600 is an abundant number, since it is smaller than the sum of its proper divisors (1532108520).

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

721080600 is a wasteful number, since it uses less digits than its factorization.

721080600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9609 (or 9600 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 721080600 is about 26852.9439726820. The cubic root of 721080600 is about 896.7291146206.

The spelling of 721080600 in words is "seven hundred twenty-one million, eighty thousand, six hundred".