726723697 has 16 divisors (see below), whose sum is σ = 854008960. Its totient is φ = 605346048.

The previous prime is 726723671. The next prime is 726723703. The reversal of 726723697 is 796327627.

726723697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 726723697 - 2¹¹ = 726721649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726723697.

It is not an unprimeable number, because it can be changed into a prime (726723637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408073 + ... + 409849.

It is an arithmetic number, because the mean of its divisors is an integer number (53375560).

Almost surely, 2^726723697 is an apocalyptic number.

It is an amenable number.

726723697 is a deficient number, since it is larger than the sum of its proper divisors (127285263).

726723697 is a wasteful number, since it uses less digits than its factorization.

726723697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400.

The product of its digits is 1333584, while the sum is 49.

The square root of 726723697 is about 26957.8132829798. The cubic root of 726723697 is about 899.0622730983.

The spelling of 726723697 in words is "seven hundred twenty-six million, seven hundred twenty-three thousand, six hundred ninety-seven".