723778368 has 28 divisors (see below), whose sum is σ = 1914997440. Its totient is φ = 241259392.

The previous prime is 723778361. The next prime is 723778369. The reversal of 723778368 is 863877327.

723778368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×723778368⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723778368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723778361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884648 + ... + 1885031.

Almost surely, 2^723778368 is an apocalyptic number.

It is an amenable number.

723778368 is an abundant number, since it is smaller than the sum of its proper divisors (1191219072).

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

723778368 is a wasteful number, since it uses less digits than its factorization.

723778368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769694 (or 3769684 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 51.

The square root of 723778368 is about 26903.1293347075. The cubic root of 723778368 is about 897.8460292595.

The spelling of 723778368 in words is "seven hundred twenty-three million, seven hundred seventy-eight thousand, three hundred sixty-eight".