723666803 has 4 divisors (see below), whose sum is σ = 730071048. Its totient is φ = 717262560.

The previous prime is 723666731. The next prime is 723666859. The reversal of 723666803 is 308666327.

723666803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 723666803 - 2¹⁰ = 723665779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723666893) 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, 3201953 + ... + 3202178.

It is an arithmetic number, because the mean of its divisors is an integer number (182517762).

Almost surely, 2^723666803 is an apocalyptic number.

723666803 is a deficient number, since it is larger than the sum of its proper divisors (6404245).

723666803 is a wasteful number, since it uses less digits than its factorization.

723666803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404244.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 723666803 is about 26901.0557971244. The cubic root of 723666803 is about 897.7998948148.

The spelling of 723666803 in words is "seven hundred twenty-three million, six hundred sixty-six thousand, eight hundred three".