71336947 has 8 divisors (see below), whose sum is σ = 82400112. Its totient is φ = 61036800.

The previous prime is 71336939. The next prime is 71336953. The reversal of 71336947 is 74963317.

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

It is not a de Polignac number, because 71336947 - 2³ = 71336939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71336747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190554 + ... + 190927.

It is an arithmetic number, because the mean of its divisors is an integer number (10300014).

Almost surely, 2^71336947 is an apocalyptic number.

71336947 is a deficient number, since it is larger than the sum of its proper divisors (11063165).

71336947 is a wasteful number, since it uses less digits than its factorization.

71336947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381509.

The product of its digits is 95256, while the sum is 40.

The square root of 71336947 is about 8446.1202335747. The cubic root of 71336947 is about 414.7357818812.

The spelling of 71336947 in words is "seventy-one million, three hundred thirty-six thousand, nine hundred forty-seven".