727343649 has 24 divisors (see below), whose sum is σ = 1083537000. Its totient is φ = 469858560.

The previous prime is 727343633. The next prime is 727343711. The reversal of 727343649 is 946343727.

It can be written as a sum of positive squares in 4 ways, for example, as 50979600 + 676364049 = 7140^2 + 26007^2 .

It is not a de Polignac number, because 727343649 - 2⁴ = 727343633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (727343609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48367 + ... + 61595.

It is an arithmetic number, because the mean of its divisors is an integer number (45147375).

Almost surely, 2^727343649 is an apocalyptic number.

It is an amenable number.

727343649 is a deficient number, since it is larger than the sum of its proper divisors (356193351).

727343649 is a wasteful number, since it uses less digits than its factorization.

727343649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13425 (or 13422 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 727343649 is about 26969.3093904905. The cubic root of 727343649 is about 899.3178571838.

The spelling of 727343649 in words is "seven hundred twenty-seven million, three hundred forty-three thousand, six hundred forty-nine".