71907112 has 32 divisors (see below), whose sum is σ = 138902400. Its totient is φ = 34876800.

The previous prime is 71907109. The next prime is 71907119. The reversal of 71907112 is 21170917.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71907119) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 68689 + ... + 69727.

It is an arithmetic number, because the mean of its divisors is an integer number (4340700).

Almost surely, 2^71907112 is an apocalyptic number.

It is an amenable number.

71907112 is a deficient number, since it is larger than the sum of its proper divisors (66995288).

71907112 is a wasteful number, since it uses less digits than its factorization.

71907112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 71907112 is about 8479.8061298593. The cubic root of 71907112 is about 415.8377850036.

The spelling of 71907112 in words is "seventy-one million, nine hundred seven thousand, one hundred twelve".