71065706 has 4 divisors (see below), whose sum is σ = 106598562. Its totient is φ = 35532852.

The previous prime is 71065697. The next prime is 71065723. The reversal of 71065706 is 60756017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 2920681 = 8255^2 + 1709^2 .

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 as a sum of consecutive naturals, namely, 17766425 + ... + 17766428.

Almost surely, 2^71065706 is an apocalyptic number.

71065706 is a deficient number, since it is larger than the sum of its proper divisors (35532856).

71065706 is a wasteful number, since it uses less digits than its factorization.

71065706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35532855.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 71065706 is about 8430.0478053212. The cubic root of 71065706 is about 414.2094710382.

The spelling of 71065706 in words is "seventy-one million, sixty-five thousand, seven hundred six".