71147706 has 48 divisors (see below), whose sum is σ = 166813920. Its totient is φ = 20170080.

The previous prime is 71147689. The next prime is 71147719. The reversal of 71147706 is 60774117.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 39996 + ... + 41736.

It is an arithmetic number, because the mean of its divisors is an integer number (3475290).

Almost surely, 2^71147706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71147706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83406960).

71147706 is an abundant number, since it is smaller than the sum of its proper divisors (95666214).

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

71147706 is a wasteful number, since it uses less digits than its factorization.

71147706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 71147706 is about 8434.9099580256. The cubic root of 71147706 is about 414.3687232908.

The spelling of 71147706 in words is "seventy-one million, one hundred forty-seven thousand, seven hundred six".