573440723 has 4 divisors (see below), whose sum is σ = 573504360. Its totient is φ = 573377088.

The previous prime is 573440717. The next prime is 573440737. The reversal of 573440723 is 327044375.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 573440723 - 2²⁰ = 572392147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573440323) 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, 15518 + ... + 37251.

It is an arithmetic number, because the mean of its divisors is an integer number (143376090).

Almost surely, 2^573440723 is an apocalyptic number.

573440723 is a deficient number, since it is larger than the sum of its proper divisors (63637).

573440723 is a wasteful number, since it uses less digits than its factorization.

573440723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63636.

The product of its (nonzero) digits is 70560, while the sum is 35.

The square root of 573440723 is about 23946.6223714327. The cubic root of 573440723 is about 830.7994054565.

The spelling of 573440723 in words is "five hundred seventy-three million, four hundred forty thousand, seven hundred twenty-three".