71712006 has 8 divisors (see below), whose sum is σ = 143424024. Its totient is φ = 23904000.

The previous prime is 71711951. The next prime is 71712049. The reversal of 71712006 is 60021717.

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

71712006 is an admirable number.

It is a super-2 number, since 2×71712006² = 10285223609088072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5975995 + ... + 5976006.

It is an arithmetic number, because the mean of its divisors is an integer number (17928003).

Almost surely, 2^71712006 is an apocalyptic number.

71712006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71712006 is a wasteful number, since it uses less digits than its factorization.

71712006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11952006.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 71712006 is about 8468.2941611637. The cubic root of 71712006 is about 415.4613459446.

The spelling of 71712006 in words is "seventy-one million, seven hundred twelve thousand, six".