720724063 has 4 divisors (see below), whose sum is σ = 727721488. Its totient is φ = 713726640.

The previous prime is 720724049. The next prime is 720724087. The reversal of 720724063 is 360427027.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 720724063 - 2¹³ = 720715871 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 (720724013) 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 3 ways as a sum of consecutive naturals, for example, 3498558 + ... + 3498763.

It is an arithmetic number, because the mean of its divisors is an integer number (181930372).

Almost surely, 2^720724063 is an apocalyptic number.

720724063 is a deficient number, since it is larger than the sum of its proper divisors (6997425).

720724063 is a wasteful number, since it uses less digits than its factorization.

720724063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997424.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 720724063 is about 26846.3044570384. The cubic root of 720724063 is about 896.5812948913.

The spelling of 720724063 in words is "seven hundred twenty million, seven hundred twenty-four thousand, sixty-three".