723030013 has 4 divisors (see below), whose sum is σ = 730188828. Its totient is φ = 715871200.

The previous prime is 723029981. The next prime is 723030029. The reversal of 723030013 is 310030327.

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

It can be written as a sum of positive squares in 2 ways, for example, as 461949049 + 261080964 = 21493^2 + 16158^2 .

It is a cyclic number.

It is not a de Polignac number, because 723030013 - 2⁵ = 723029981 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 (723030053) 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, 3579256 + ... + 3579457.

It is an arithmetic number, because the mean of its divisors is an integer number (182547207).

Almost surely, 2^723030013 is an apocalyptic number.

It is an amenable number.

723030013 is a deficient number, since it is larger than the sum of its proper divisors (7158815).

723030013 is a wasteful number, since it uses less digits than its factorization.

723030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158814.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 723030013 is about 26889.2174114458. The cubic root of 723030013 is about 897.5364781122.

The spelling of 723030013 in words is "seven hundred twenty-three million, thirty thousand, thirteen".