723513664 has 14 divisors (see below), whose sum is σ = 1435722554. Its totient is φ = 361756800.

The previous prime is 723513649. The next prime is 723513667. The reversal of 723513664 is 466315327.

723513664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 528632064 + 194881600 = 22992^2 + 13960^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723513667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652387 + ... + 5652514.

It is an arithmetic number, because the mean of its divisors is an integer number (102551611).

Almost surely, 2^723513664 is an apocalyptic number.

It is an amenable number.

723513664 is a deficient number, since it is larger than the sum of its proper divisors (712208890).

723513664 is a wasteful number, since it uses less digits than its factorization.

723513664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304913 (or 11304903 counting only the distinct ones).

The product of its digits is 90720, while the sum is 37.

The square root of 723513664 is about 26898.2093084279. The cubic root of 723513664 is about 897.7365609357.

The spelling of 723513664 in words is "seven hundred twenty-three million, five hundred thirteen thousand, six hundred sixty-four".