724056865 has 8 divisors (see below), whose sum is σ = 992992320. Its totient is φ = 496496112.

The previous prime is 724056821. The next prime is 724056871. The reversal of 724056865 is 568650427.

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

It is not a de Polignac number, because 724056865 - 2¹³ = 724048673 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10343635 + ... + 10343704.

It is an arithmetic number, because the mean of its divisors is an integer number (124124040).

Almost surely, 2^724056865 is an apocalyptic number.

It is an amenable number.

724056865 is a deficient number, since it is larger than the sum of its proper divisors (268935455).

724056865 is a wasteful number, since it uses less digits than its factorization.

724056865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20687351.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 724056865 is about 26908.3047589401. The cubic root of 724056865 is about 897.9611728690.

The spelling of 724056865 in words is "seven hundred twenty-four million, fifty-six thousand, eight hundred sixty-five".