728524923 has 32 divisors (see below), whose sum is σ = 1171607040. Its totient is φ = 393361920.

The previous prime is 728524843. The next prime is 728524933. The reversal of 728524923 is 329425827.

It is not a de Polignac number, because 728524923 - 2¹⁶ = 728459387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728524933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165811 + ... + 170147.

It is an arithmetic number, because the mean of its divisors is an integer number (36612720).

Almost surely, 2^728524923 is an apocalyptic number.

728524923 is a deficient number, since it is larger than the sum of its proper divisors (443082117).

728524923 is a wasteful number, since it uses less digits than its factorization.

728524923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787.

The product of its digits is 241920, while the sum is 42.

The square root of 728524923 is about 26991.2008439788. The cubic root of 728524923 is about 899.8044525773.

The spelling of 728524923 in words is "seven hundred twenty-eight million, five hundred twenty-four thousand, nine hundred twenty-three".