71740559 has 8 divisors (see below), whose sum is σ = 78371328. Its totient is φ = 65127960.

The previous prime is 71740549. The next prime is 71740567. The reversal of 71740559 is 95504717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71740559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 12800.

It is an arithmetic number, because the mean of its divisors is an integer number (9796416).

Almost surely, 2^71740559 is an apocalyptic number.

71740559 is a deficient number, since it is larger than the sum of its proper divisors (6630769).

71740559 is a wasteful number, since it uses less digits than its factorization.

71740559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 71740559 is about 8469.9798701059. The cubic root of 71740559 is about 415.5164789430.

The spelling of 71740559 in words is "seventy-one million, seven hundred forty thousand, five hundred fifty-nine".