723968328 has 16 divisors (see below), whose sum is σ = 1809920880. Its totient is φ = 241322768.

The previous prime is 723968317. The next prime is 723968351. The reversal of 723968328 is 823869327.

It is a happy number.

It is a super-3 number, since 3×723968328³ (a number of 28 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 15082650 + ... + 15082697.

It is an arithmetic number, because the mean of its divisors is an integer number (113120055).

Almost surely, 2^723968328 is an apocalyptic number.

It is an amenable number.

723968328 is an abundant number, since it is smaller than the sum of its proper divisors (1085952552).

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

723968328 is a wasteful number, since it uses less digits than its factorization.

723968328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30165356 (or 30165352 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 723968328 is about 26906.6595474057. The cubic root of 723968328 is about 897.9245707581.

Subtracting 723968328 from its reverse (823869327), we obtain a palindrome (99900999).

The spelling of 723968328 in words is "seven hundred twenty-three million, nine hundred sixty-eight thousand, three hundred twenty-eight".