71908132 has 6 divisors (see below), whose sum is σ = 125839238. Its totient is φ = 35954064.

The previous prime is 71908117. The next prime is 71908157. The reversal of 71908132 is 23180917.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 25341156 = 6824^2 + 5034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71908094 and 71908103.

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, 8988513 + ... + 8988520.

Almost surely, 2^71908132 is an apocalyptic number.

It is an amenable number.

71908132 is a deficient number, since it is larger than the sum of its proper divisors (53931106).

71908132 is a wasteful number, since it uses less digits than its factorization.

71908132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17977037 (or 17977035 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 71908132 is about 8479.8662725305. The cubic root of 71908132 is about 415.8397512094.

The spelling of 71908132 in words is "seventy-one million, nine hundred eight thousand, one hundred thirty-two".