726512737 has 4 divisors (see below), whose sum is σ = 728879536. Its totient is φ = 724145940.

The previous prime is 726512729. The next prime is 726512741. The reversal of 726512737 is 737215627.

It is a happy number.

726512737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726512737 - 2³ = 726512729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726512737.

It is not an unprimeable number, because it can be changed into a prime (726512767) 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, 1182939 + ... + 1183552.

It is an arithmetic number, because the mean of its divisors is an integer number (182219884).

Almost surely, 2^726512737 is an apocalyptic number.

It is an amenable number.

726512737 is a deficient number, since it is larger than the sum of its proper divisors (2366799).

726512737 is a wasteful number, since it uses less digits than its factorization.

726512737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366798.

The product of its digits is 123480, while the sum is 40.

The square root of 726512737 is about 26953.9002187068. The cubic root of 726512737 is about 898.9752686730.

It can be divided in two parts, 7265 and 12737, that added together give a palindrome (20002).

The spelling of 726512737 in words is "seven hundred twenty-six million, five hundred twelve thousand, seven hundred thirty-seven".