71678872 has 16 divisors (see below), whose sum is σ = 135655560. Its totient is φ = 35504064.

The previous prime is 71678869. The next prime is 71678881. The reversal of 71678872 is 27887617.

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, 41013 + ... + 42724.

Almost surely, 2^71678872 is an apocalyptic number.

It is an amenable number.

71678872 is a deficient number, since it is larger than the sum of its proper divisors (63976688).

71678872 is a wasteful number, since it uses less digits than its factorization.

71678872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83850 (or 83846 counting only the distinct ones).

The product of its digits is 263424, while the sum is 46.

The square root of 71678872 is about 8466.3375789062. The cubic root of 71678872 is about 415.3973491436.

The spelling of 71678872 in words is "seventy-one million, six hundred seventy-eight thousand, eight hundred seventy-two".