723667968 has 264 divisors, whose sum is σ = 2299190400. Its totient is φ = 218234880.

The previous prime is 723667963. The next prime is 723667979. The reversal of 723667968 is 869766327.

It is not an unprimeable number, because it can be changed into a prime (723667963) 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, 4856758 + ... + 4856906.

Almost surely, 2^723667968 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 723667968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149595200).

723667968 is an abundant number, since it is smaller than the sum of its proper divisors (1575522432).

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

723667968 is a wasteful number, since it uses less digits than its factorization.

723667968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 202 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 723667968 is about 26901.0774505409. The cubic root of 723667968 is about 897.8003765910.

The spelling of 723667968 in words is "seven hundred twenty-three million, six hundred sixty-seven thousand, nine hundred sixty-eight".