723963 has 4 divisors (see below), whose sum is σ = 965288. Its totient is φ = 482640.

The previous prime is 723959. The next prime is 723967. The reversal of 723963 is 369327.

It is a happy number.

723963 is digitally balanced in base 7, 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 an interprime number because it is at equal distance from previous prime (723959) and next prime (723967).

It is not a de Polignac number, because 723963 - 2² = 723959 is a prime.

It is a D-number.

It is a Duffinian number.

723963 is strictly pandigital in base 7.

723963 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 723963.

It is not an unprimeable number, because it can be changed into a prime (723967) by changing a digit.

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, 120658 + ... + 120663.

It is an arithmetic number, because the mean of its divisors is an integer number (241322).

2⁷²³⁹⁶³ is an apocalyptic number.

723963 is a deficient number, since it is larger than the sum of its proper divisors (241325).

723963 is a wasteful number, since it uses less digits than its factorization.

723963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241324.

The product of its digits is 6804, while the sum is 30.

The square root of 723963 is about 850.8601530216. The cubic root of 723963 is about 89.7922368013.

The spelling of 723963 in words is "seven hundred twenty-three thousand, nine hundred sixty-three".