727443361 has 8 divisors (see below), whose sum is σ = 757404648. Its totient is φ = 698064000.

The previous prime is 727443359. The next prime is 727443373. The reversal of 727443361 is 163344727.

It can be written as a sum of positive squares in 4 ways, for example, as 177822225 + 549621136 = 13335^2 + 23444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 727443361 - 2¹ = 727443359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 727443361.

It is not an unprimeable number, because it can be changed into a prime (727443331) 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, 142930 + ... + 147931.

It is an arithmetic number, because the mean of its divisors is an integer number (94675581).

Almost surely, 2^727443361 is an apocalyptic number.

It is an amenable number.

727443361 is a deficient number, since it is larger than the sum of its proper divisors (29961287).

727443361 is a wasteful number, since it uses less digits than its factorization.

727443361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290963.

The product of its digits is 84672, while the sum is 37.

The square root of 727443361 is about 26971.1579469625. The cubic root of 727443361 is about 899.3589513236.

The spelling of 727443361 in words is "seven hundred twenty-seven million, four hundred forty-three thousand, three hundred sixty-one".