71347727 has 8 divisors (see below), whose sum is σ = 78395520. Its totient is φ = 64393560.

The previous prime is 71347693. The next prime is 71347733. The reversal of 71347727 is 72774317.

It is a happy number.

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

It is not a de Polignac number, because 71347727 - 2⁶ = 71347663 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 (71347777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21803 + ... + 24860.

It is an arithmetic number, because the mean of its divisors is an integer number (9799440).

Almost surely, 2^71347727 is an apocalyptic number.

71347727 is a deficient number, since it is larger than the sum of its proper divisors (7047793).

71347727 is a wasteful number, since it uses less digits than its factorization.

71347727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46813.

The product of its digits is 57624, while the sum is 38.

The square root of 71347727 is about 8446.7583722988. The cubic root of 71347727 is about 414.7566716012.

The spelling of 71347727 in words is "seventy-one million, three hundred forty-seven thousand, seven hundred twenty-seven".