726596121 has 16 divisors (see below), whose sum is σ = 1004845248. Its totient is φ = 466632000.

The previous prime is 726596113. The next prime is 726596153. The reversal of 726596121 is 121695627.

It is not a de Polignac number, because 726596121 - 2³ = 726596113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726596121.

It is not an unprimeable number, because it can be changed into a prime (726596191) 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 15 ways as a sum of consecutive naturals, for example, 21195 + ... + 43616.

It is an arithmetic number, because the mean of its divisors is an integer number (62802828).

Almost surely, 2^726596121 is an apocalyptic number.

It is an amenable number.

726596121 is a deficient number, since it is larger than the sum of its proper divisors (278249127).

726596121 is a wasteful number, since it uses less digits than its factorization.

726596121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64952.

The product of its digits is 45360, while the sum is 39.

The square root of 726596121 is about 26955.4469634618. The cubic root of 726596121 is about 899.0096600344.

The spelling of 726596121 in words is "seven hundred twenty-six million, five hundred ninety-six thousand, one hundred twenty-one".