727347613 has 4 divisors (see below), whose sum is σ = 734846140. Its totient is φ = 719849088.

The previous prime is 727347611. The next prime is 727347641. The reversal of 727347613 is 316743727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141562404 + 585785209 = 11898^2 + 24203^2 .

It is a cyclic number.

It is not a de Polignac number, because 727347613 - 2¹ = 727347611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727347611) 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 3 ways as a sum of consecutive naturals, for example, 3749118 + ... + 3749311.

It is an arithmetic number, because the mean of its divisors is an integer number (183711535).

Almost surely, 2^727347613 is an apocalyptic number.

It is an amenable number.

727347613 is a deficient number, since it is larger than the sum of its proper divisors (7498527).

727347613 is an equidigital number, since it uses as much as digits as its factorization.

727347613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7498526.

The product of its digits is 148176, while the sum is 40.

The square root of 727347613 is about 26969.3828813342. The cubic root of 727347613 is about 899.3194909322.

The spelling of 727347613 in words is "seven hundred twenty-seven million, three hundred forty-seven thousand, six hundred thirteen".