723730041 has 6 divisors (see below), whose sum is σ = 1045387850. Its totient is φ = 482486688.

The previous prime is 723730031. The next prime is 723730081. The reversal of 723730041 is 140037327.

It can be written as a sum of positive squares in only one way, i.e., 695851641 + 27878400 = 26379^2 + 5280^2 .

It is not a de Polignac number, because 723730041 - 2⁵ = 723730009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 723729987 and 723730014.

It is not an unprimeable number, because it can be changed into a prime (723730031) 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 5 ways as a sum of consecutive naturals, for example, 40207216 + ... + 40207233.

Almost surely, 2^723730041 is an apocalyptic number.

It is an amenable number.

723730041 is a deficient number, since it is larger than the sum of its proper divisors (321657809).

723730041 is a wasteful number, since it uses less digits than its factorization.

723730041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80414455 (or 80414452 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 723730041 is about 26902.2311528245. The cubic root of 723730041 is about 897.8260456233.

Adding to 723730041 its reverse (140037327), we get a palindrome (863767368).

The spelling of 723730041 in words is "seven hundred twenty-three million, seven hundred thirty thousand, forty-one".