723918066 has 16 divisors (see below), whose sum is σ = 1448820000. Its totient is φ = 241142048.

The previous prime is 723918053. The next prime is 723918071. The reversal of 723918066 is 660819327.

It is a happy number.

723918066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31251 + ... + 49238.

It is an arithmetic number, because the mean of its divisors is an integer number (90551250).

Almost surely, 2^723918066 is an apocalyptic number.

723918066 is an abundant number, since it is smaller than the sum of its proper divisors (724901934).

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

723918066 is a wasteful number, since it uses less digits than its factorization.

723918066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81993.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 723918066 is about 26905.7255245050. The cubic root of 723918066 is about 897.9037905998.

The spelling of 723918066 in words is "seven hundred twenty-three million, nine hundred eighteen thousand, sixty-six".