71576072 has 8 divisors (see below), whose sum is σ = 134205150. Its totient is φ = 35788032.

The previous prime is 71576041. The next prime is 71576081. The reversal of 71576072 is 27067517.

It can be written as a sum of positive squares in only one way, i.e., 61246276 + 10329796 = 7826^2 + 3214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473497 + ... + 4473512.

Almost surely, 2^71576072 is an apocalyptic number.

It is an amenable number.

71576072 is a deficient number, since it is larger than the sum of its proper divisors (62629078).

71576072 is a wasteful number, since it uses less digits than its factorization.

71576072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947015 (or 8947011 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 71576072 is about 8460.2642984720. The cubic root of 71576072 is about 415.1986700581.

The spelling of 71576072 in words is "seventy-one million, five hundred seventy-six thousand, seventy-two".