723711072 has 96 divisors (see below), whose sum is σ = 2187972864. Its totient is φ = 205171200.

The previous prime is 723711017. The next prime is 723711091. The reversal of 723711072 is 270117327.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83922 + ... + 92142.

It is an arithmetic number, because the mean of its divisors is an integer number (22791384).

Almost surely, 2^723711072 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 723711072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093986432).

723711072 is an abundant number, since it is smaller than the sum of its proper divisors (1464261792).

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

723711072 is a wasteful number, since it uses less digits than its factorization.

723711072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8364 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 723711072 is about 26901.8785961129. The cubic root of 723711072 is about 897.8182015332.

Adding to 723711072 its reverse (270117327), we get a palindrome (993828399).

The spelling of 723711072 in words is "seven hundred twenty-three million, seven hundred eleven thousand, seventy-two".