724855243 has 4 divisors (see below), whose sum is σ = 828406000. Its totient is φ = 621304488.

The previous prime is 724855223. The next prime is 724855279. The reversal of 724855243 is 342558427.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 724855243 - 2⁵ = 724855211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 724855196 and 724855205.

It is not an unprimeable number, because it can be changed into a prime (724855223) 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, 51775368 + ... + 51775381.

It is an arithmetic number, because the mean of its divisors is an integer number (207101500).

Almost surely, 2^724855243 is an apocalyptic number.

724855243 is a deficient number, since it is larger than the sum of its proper divisors (103550757).

724855243 is a wasteful number, since it uses less digits than its factorization.

724855243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103550756.

The product of its digits is 268800, while the sum is 40.

The square root of 724855243 is about 26923.1358314740. The cubic root of 724855243 is about 898.2910959000.

The spelling of 724855243 in words is "seven hundred twenty-four million, eight hundred fifty-five thousand, two hundred forty-three".