649368727 has 12 divisors (see below), whose sum is σ = 755804496. Its totient is φ = 556295040.

The previous prime is 649368697. The next prime is 649368751. The reversal of 649368727 is 727863946.

649368727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649368727 - 2¹⁵ = 649335959 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 (649368767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162718 + ... + 166660.

It is an arithmetic number, because the mean of its divisors is an integer number (62983708).

Almost surely, 2^649368727 is an apocalyptic number.

649368727 is a deficient number, since it is larger than the sum of its proper divisors (106435769).

649368727 is a wasteful number, since it uses less digits than its factorization.

649368727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7318 (or 7311 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 52.

The square root of 649368727 is about 25482.7142785065. The cubic root of 649368727 is about 865.9585871458.

The spelling of 649368727 in words is "six hundred forty-nine million, three hundred sixty-eight thousand, seven hundred twenty-seven".