723216768 has 32 divisors (see below), whose sum is σ = 1921045560. Its totient is φ = 241072128.

The previous prime is 723216757. The next prime is 723216773. The reversal of 723216768 is 867612327.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (42) 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 3 ways as a sum of consecutive naturals, for example, 941305 + ... + 942072.

Almost surely, 2^723216768 is an apocalyptic number.

It is an amenable number.

723216768 is an abundant number, since it is smaller than the sum of its proper divisors (1197828792).

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

723216768 is a wasteful number, since it uses less digits than its factorization.

723216768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883394 (or 1883382 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 723216768 is about 26892.6898617450. The cubic root of 723216768 is about 897.6137478393.

The spelling of 723216768 in words is "seven hundred twenty-three million, two hundred sixteen thousand, seven hundred sixty-eight".