71716678 has 16 divisors (see below), whose sum is σ = 123531840. Its totient is φ = 30882600.

The previous prime is 71716669. The next prime is 71716679. The reversal of 71716678 is 87661717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71716679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85368 + ... + 86203.

It is an arithmetic number, because the mean of its divisors is an integer number (7720740).

Almost surely, 2^71716678 is an apocalyptic number.

71716678 is a deficient number, since it is larger than the sum of its proper divisors (51815162).

71716678 is a wasteful number, since it uses less digits than its factorization.

71716678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171603.

The product of its digits is 98784, while the sum is 43.

The square root of 71716678 is about 8468.5700091574. The cubic root of 71716678 is about 415.4703681124.

The spelling of 71716678 in words is "seventy-one million, seven hundred sixteen thousand, six hundred seventy-eight".