724979423 has 8 divisors (see below), whose sum is σ = 855275520. Its totient is φ = 601365240.

The previous prime is 724979393. The next prime is 724979429. The reversal of 724979423 is 324979427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 724979423 - 2¹⁰ = 724978399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724979429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670243 + ... + 1670676.

It is an arithmetic number, because the mean of its divisors is an integer number (106909440).

Almost surely, 2^724979423 is an apocalyptic number.

724979423 is a deficient number, since it is larger than the sum of its proper divisors (130296097).

724979423 is a wasteful number, since it uses less digits than its factorization.

724979423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340957.

The product of its digits is 762048, while the sum is 47.

The square root of 724979423 is about 26925.4419276639. The cubic root of 724979423 is about 898.3423904722.

The spelling of 724979423 in words is "seven hundred twenty-four million, nine hundred seventy-nine thousand, four hundred twenty-three".