726310513 has 4 divisors (see below), whose sum is σ = 727101760. Its totient is φ = 725519268.

The previous prime is 726310471. The next prime is 726310547. The reversal of 726310513 is 315013627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726310513 - 2¹³ = 726302321 is a prime.

It is a super-2 number, since 2×726310513² = 1055053922588646338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726310213) 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, 394245 + ... + 396082.

It is an arithmetic number, because the mean of its divisors is an integer number (181775440).

Almost surely, 2^726310513 is an apocalyptic number.

It is an amenable number.

726310513 is a deficient number, since it is larger than the sum of its proper divisors (791247).

726310513 is an equidigital number, since it uses as much as digits as its factorization.

726310513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791246.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 726310513 is about 26950.1486637829. The cubic root of 726310513 is about 898.8918513492.

The spelling of 726310513 in words is "seven hundred twenty-six million, three hundred ten thousand, five hundred thirteen".