71125684 has 12 divisors (see below), whose sum is σ = 142251424. Its totient is φ = 30482424.

The previous prime is 71125679. The next prime is 71125697. The reversal of 71125684 is 48652117.

71125684 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270074 + ... + 1270129.

Almost surely, 2^71125684 is an apocalyptic number.

It is an amenable number.

71125684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71125684 is a wasteful number, since it uses less digits than its factorization.

71125684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540214 (or 2540212 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 71125684 is about 8433.6044488700. The cubic root of 71125684 is about 414.3259663738.

The spelling of 71125684 in words is "seventy-one million, one hundred twenty-five thousand, six hundred eighty-four".