71906708 has 6 divisors (see below), whose sum is σ = 125836746. Its totient is φ = 35953352.

The previous prime is 71906683. The next prime is 71906711. The reversal of 71906708 is 80760917.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61653904 + 10252804 = 7852^2 + 3202^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 8988335 + ... + 8988342.

It is an arithmetic number, because the mean of its divisors is an integer number (20972791).

Almost surely, 2^71906708 is an apocalyptic number.

It is an amenable number.

71906708 is a deficient number, since it is larger than the sum of its proper divisors (53930038).

71906708 is a wasteful number, since it uses less digits than its factorization.

71906708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17976681 (or 17976679 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 71906708 is about 8479.7823085266. The cubic root of 71906708 is about 415.8370062268.

The spelling of 71906708 in words is "seventy-one million, nine hundred six thousand, seven hundred eight".