727315216 has 40 divisors (see below), whose sum is σ = 1532413080. Its totient is φ = 333010944.

The previous prime is 727315187. The next prime is 727315219. The reversal of 727315216 is 612513727.

727315216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 285474816 + 441840400 = 16896^2 + 21020^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (727315219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26071 + ... + 46198.

It is an arithmetic number, because the mean of its divisors is an integer number (38310327).

Almost surely, 2^727315216 is an apocalyptic number.

It is an amenable number.

727315216 is an abundant number, since it is smaller than the sum of its proper divisors (805097864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

727315216 is a wasteful number, since it uses less digits than its factorization.

727315216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72331 (or 72325 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 727315216 is about 26968.7822491117. The cubic root of 727315216 is about 899.3061384509.

The spelling of 727315216 in words is "seven hundred twenty-seven million, three hundred fifteen thousand, two hundred sixteen".