71028727 has 8 divisors (see below), whose sum is σ = 88555392. Its totient is φ = 55347000.

The previous prime is 71028709. The next prime is 71028731. The reversal of 71028727 is 72782017.

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 71028727 - 2⁷ = 71028599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71028692 and 71028701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71028757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461149 + ... + 461302.

It is an arithmetic number, because the mean of its divisors is an integer number (11069424).

Almost surely, 2^71028727 is an apocalyptic number.

71028727 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

71028727 is a deficient number, since it is larger than the sum of its proper divisors (17526665).

71028727 is a wasteful number, since it uses less digits than its factorization.

71028727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922469.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 71028727 is about 8427.8542346199. The cubic root of 71028727 is about 414.1376140184.

The spelling of 71028727 in words is "seventy-one million, twenty-eight thousand, seven hundred twenty-seven".