71368689 has 16 divisors (see below), whose sum is σ = 109025280. Its totient is φ = 40679760.

The previous prime is 71368657. The next prime is 71368711. The reversal of 71368689 is 98686317.

It is not a de Polignac number, because 71368689 - 2⁵ = 71368657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71368639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4744 + ... + 12854.

It is an arithmetic number, because the mean of its divisors is an integer number (6814080).

Almost surely, 2^71368689 is an apocalyptic number.

It is an amenable number.

71368689 is a deficient number, since it is larger than the sum of its proper divisors (37656591).

71368689 is a wasteful number, since it uses less digits than its factorization.

71368689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540.

The product of its digits is 435456, while the sum is 48.

The square root of 71368689 is about 8447.9991122159. Note that the first 3 decimals coincide. The cubic root of 71368689 is about 414.7972862006.

The spelling of 71368689 in words is "seventy-one million, three hundred sixty-eight thousand, six hundred eighty-nine".