727245071 has 4 divisors (see below), whose sum is σ = 831137232. Its totient is φ = 623352912.

The previous prime is 727245047. The next prime is 727245097. The reversal of 727245071 is 170542727.

727245071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170542727 = 19 ⋅8975933.

It is not a de Polignac number, because 727245071 - 2¹⁰ = 727244047 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 (727245371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51946070 + ... + 51946083.

It is an arithmetic number, because the mean of its divisors is an integer number (207784308).

Almost surely, 2^727245071 is an apocalyptic number.

727245071 is a deficient number, since it is larger than the sum of its proper divisors (103892161).

727245071 is a wasteful number, since it uses less digits than its factorization.

727245071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103892160.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 727245071 is about 26967.4817326350. The cubic root of 727245071 is about 899.2772267054.

Adding to 727245071 its reverse (170542727), we get a palindrome (897787798).

The spelling of 727245071 in words is "seven hundred twenty-seven million, two hundred forty-five thousand, seventy-one".