727887613 has 2 divisors, whose sum is σ = 727887614. Its totient is φ = 727887612.

The previous prime is 727887607. The next prime is 727887619. The reversal of 727887613 is 316788727.

It is a balanced prime because it is at equal distance from previous prime (727887607) and next prime (727887619).

It can be written as a sum of positive squares in only one way, i.e., 376437604 + 351450009 = 19402^2 + 18747^2 .

It is a cyclic number.

It is not a de Polignac number, because 727887613 - 2¹³ = 727879421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727887619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363943806 + 363943807.

It is an arithmetic number, because the mean of its divisors is an integer number (363943807).

Almost surely, 2^727887613 is an apocalyptic number.

It is an amenable number.

727887613 is a deficient number, since it is larger than the sum of its proper divisors (1).

727887613 is an equidigital number, since it uses as much as digits as its factorization.

727887613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 49.

The square root of 727887613 is about 26979.3923764046. The cubic root of 727887613 is about 899.5419945349.

The spelling of 727887613 in words is "seven hundred twenty-seven million, eight hundred eighty-seven thousand, six hundred thirteen".