71706066 has 8 divisors (see below), whose sum is σ = 143412144. Its totient is φ = 23902020.

The previous prime is 71706053. The next prime is 71706073. The reversal of 71706066 is 66060717.

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

71706066 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5975500 + ... + 5975511.

It is an arithmetic number, because the mean of its divisors is an integer number (17926518).

Almost surely, 2^71706066 is an apocalyptic number.

71706066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71706066 is a wasteful number, since it uses less digits than its factorization.

71706066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11951016.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 71706066 is about 8467.9434339159. The cubic root of 71706066 is about 415.4498745575.

The spelling of 71706066 in words is "seventy-one million, seven hundred six thousand, sixty-six".