726104961 has 6 divisors (see below), whose sum is σ = 1048818290. Its totient is φ = 484069968.

The previous prime is 726104947. The next prime is 726104993. The reversal of 726104961 is 169401627.

It can be written as a sum of positive squares in only one way, i.e., 627201936 + 98903025 = 25044^2 + 9945^2 .

It is not a de Polignac number, because 726104961 - 2¹¹ = 726102913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726104921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40339156 + ... + 40339173.

Almost surely, 2^726104961 is an apocalyptic number.

It is an amenable number.

726104961 is a deficient number, since it is larger than the sum of its proper divisors (322713329).

726104961 is a wasteful number, since it uses less digits than its factorization.

726104961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80678335 (or 80678332 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 726104961 is about 26946.3348342590. The cubic root of 726104961 is about 898.8070453571.

The spelling of 726104961 in words is "seven hundred twenty-six million, one hundred four thousand, nine hundred sixty-one".