726650726 has 16 divisors (see below), whose sum is σ = 1144212480. Its totient is φ = 345644040.

The previous prime is 726650719. The next prime is 726650747. The reversal of 726650726 is 627056627.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95666 + ... + 102981.

It is an arithmetic number, because the mean of its divisors is an integer number (71513280).

Almost surely, 2^726650726 is an apocalyptic number.

726650726 is a deficient number, since it is larger than the sum of its proper divisors (417561754).

726650726 is a wasteful number, since it uses less digits than its factorization.

726650726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198739.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 726650726 is about 26956.4598194941. The cubic root of 726650726 is about 899.0321801990.

The spelling of 726650726 in words is "seven hundred twenty-six million, six hundred fifty thousand, seven hundred twenty-six".