723665488 has 80 divisors (see below), whose sum is σ = 1781441536. Its totient is φ = 277032960.

The previous prime is 723665443. The next prime is 723665489. The reversal of 723665488 is 884566327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723665489) 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, 37120 + ... + 53152.

Almost surely, 2^723665488 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 723665488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890720768).

723665488 is an abundant number, since it is smaller than the sum of its proper divisors (1057776048).

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

723665488 is a wasteful number, since it uses less digits than its factorization.

723665488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16092 (or 16086 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 723665488 is about 26901.0313556934. The cubic root of 723665488 is about 897.7993510067.

The spelling of 723665488 in words is "seven hundred twenty-three million, six hundred sixty-five thousand, four hundred eighty-eight".