71065860 has 72 divisors (see below), whose sum is σ = 208104960. Its totient is φ = 18118848.

The previous prime is 71065859. The next prime is 71065861. The reversal of 71065860 is 6856017.

It is an interprime number because it is at equal distance from previous prime (71065859) and next prime (71065861).

It is not an unprimeable number, because it can be changed into a prime (71065861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30621 + ... + 32859.

Almost surely, 2^71065860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71065860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104052480).

71065860 is an abundant number, since it is smaller than the sum of its proper divisors (137039100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71065860 is a wasteful number, since it uses less digits than its factorization.

71065860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 71065860 is about 8430.0569393095. The cubic root of 71065860 is about 414.2097702365.

The spelling of 71065860 in words is "seventy-one million, sixty-five thousand, eight hundred sixty".