71860065 has 8 divisors (see below), whose sum is σ = 114976128. Its totient is φ = 38325360.

The previous prime is 71860049. The next prime is 71860067. The reversal of 71860065 is 56006817.

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

It is not a de Polignac number, because 71860065 - 2⁴ = 71860049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71860067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2395321 + ... + 2395350.

It is an arithmetic number, because the mean of its divisors is an integer number (14372016).

Almost surely, 2^71860065 is an apocalyptic number.

It is an amenable number.

71860065 is a deficient number, since it is larger than the sum of its proper divisors (43116063).

71860065 is a wasteful number, since it uses less digits than its factorization.

71860065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790679.

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

The square root of 71860065 is about 8477.0316148992. The cubic root of 71860065 is about 415.7470745115.

The spelling of 71860065 in words is "seventy-one million, eight hundred sixty thousand, sixty-five".