723448768 has 56 divisors (see below), whose sum is σ = 1650910592. Its totient is φ = 308116224.

The previous prime is 723448763. The next prime is 723448771. The reversal of 723448768 is 867844327.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723448763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68071 + ... + 77977.

Almost surely, 2^723448768 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 723448768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825455296).

723448768 is an abundant number, since it is smaller than the sum of its proper divisors (927461824).

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

723448768 is a wasteful number, since it uses less digits than its factorization.

723448768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089 (or 10079 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 49.

The square root of 723448768 is about 26897.0029557198. The cubic root of 723448768 is about 897.7097191234.

The spelling of 723448768 in words is "seven hundred twenty-three million, four hundred forty-eight thousand, seven hundred sixty-eight".