71384678 has 16 divisors (see below), whose sum is σ = 109032480. Its totient is φ = 35044800.

The previous prime is 71384657. The next prime is 71384711. The reversal of 71384678 is 87648317.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39008 + ... + 40796.

It is an arithmetic number, because the mean of its divisors is an integer number (6814530).

Almost surely, 2^71384678 is an apocalyptic number.

71384678 is a deficient number, since it is larger than the sum of its proper divisors (37647802).

71384678 is a wasteful number, since it uses less digits than its factorization.

71384678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

The product of its digits is 225792, while the sum is 44.

The square root of 71384678 is about 8448.9453779747. The cubic root of 71384678 is about 414.8282600944.

The spelling of 71384678 in words is "seventy-one million, three hundred eighty-four thousand, six hundred seventy-eight".