726952813 has 2 divisors, whose sum is σ = 726952814. Its totient is φ = 726952812.

The previous prime is 726952783. The next prime is 726952817. The reversal of 726952813 is 318259627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410184009 + 316768804 = 20253^2 + 17798^2 .

It is a cyclic number.

It is not a de Polignac number, because 726952813 - 2⁵ = 726952781 is a prime.

It is a super-2 number, since 2×726952813² = 1056920784657225938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 726952813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726952817) 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 as a sum of consecutive naturals, namely, 363476406 + 363476407.

It is an arithmetic number, because the mean of its divisors is an integer number (363476407).

Almost surely, 2^726952813 is an apocalyptic number.

It is an amenable number.

726952813 is a deficient number, since it is larger than the sum of its proper divisors (1).

726952813 is an equidigital number, since it uses as much as digits as its factorization.

726952813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 726952813 is about 26962.0624767468. The cubic root of 726952813 is about 899.1567463756.

The spelling of 726952813 in words is "seven hundred twenty-six million, nine hundred fifty-two thousand, eight hundred thirteen".