726275065 has 4 divisors (see below), whose sum is σ = 871530084. Its totient is φ = 581020048.

The previous prime is 726275063. The next prime is 726275087. The reversal of 726275065 is 560572627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560572627 = 137 ⋅4091771.

It can be written as a sum of positive squares in 2 ways, for example, as 411602944 + 314672121 = 20288^2 + 17739^2 .

It is a cyclic number.

It is not a de Polignac number, because 726275065 - 2¹ = 726275063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726275063) 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, 72627502 + ... + 72627511.

It is an arithmetic number, because the mean of its divisors is an integer number (217882521).

Almost surely, 2^726275065 is an apocalyptic number.

It is an amenable number.

726275065 is a deficient number, since it is larger than the sum of its proper divisors (145255019).

726275065 is a wasteful number, since it uses less digits than its factorization.

726275065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145255018.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 726275065 is about 26949.4909970485. The cubic root of 726275065 is about 898.8772274676.

The spelling of 726275065 in words is "seven hundred twenty-six million, two hundred seventy-five thousand, sixty-five".