71028617 has 8 divisors (see below), whose sum is σ = 77768832. Its totient is φ = 64335600.

The previous prime is 71028611. The next prime is 71028689. The reversal of 71028617 is 71682017.

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 71028617 - 2¹⁴ = 71012233 is a prime.

It is a super-3 number, since 3×71028617³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71028611) 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, 8609 + ... + 14702.

It is an arithmetic number, because the mean of its divisors is an integer number (9721104).

Almost surely, 2^71028617 is an apocalyptic number.

It is an amenable number.

71028617 is a deficient number, since it is larger than the sum of its proper divisors (6740215).

71028617 is a wasteful number, since it uses less digits than its factorization.

71028617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23599.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 71028617 is about 8427.8477086383. The cubic root of 71028617 is about 414.1374002309.

The spelling of 71028617 in words is "seventy-one million, twenty-eight thousand, six hundred seventeen".