71740471 has 8 divisors (see below), whose sum is σ = 79928064. Its totient is φ = 63830520.

The previous prime is 71740463. The next prime is 71740481. The reversal of 71740471 is 17404717.

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

It is a cyclic number.

It is not a de Polignac number, because 71740471 - 2³ = 71740463 is a prime.

It is a super-3 number, since 3×71740471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740481) 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, 68865 + ... + 69898.

It is an arithmetic number, because the mean of its divisors is an integer number (9991008).

Almost surely, 2^71740471 is an apocalyptic number.

71740471 is a deficient number, since it is larger than the sum of its proper divisors (8187593).

71740471 is a wasteful number, since it uses less digits than its factorization.

71740471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138821.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 71740471 is about 8469.9746752868. The cubic root of 71740471 is about 415.5163090462.

The spelling of 71740471 in words is "seventy-one million, seven hundred forty thousand, four hundred seventy-one".