71229983 has 8 divisors (see below), whose sum is σ = 82276560. Its totient is φ = 60945280.

The previous prime is 71229979. The next prime is 71229989. The reversal of 71229983 is 38992217.

It is a happy number.

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

It is not a de Polignac number, because 71229983 - 2² = 71229979 is a prime.

It is a super-3 number, since 3×71229983³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71229983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71229989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190268 + ... + 190641.

It is an arithmetic number, because the mean of its divisors is an integer number (10284570).

Almost surely, 2^71229983 is an apocalyptic number.

71229983 is a deficient number, since it is larger than the sum of its proper divisors (11046577).

71229983 is a wasteful number, since it uses less digits than its factorization.

71229983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380937.

The product of its digits is 54432, while the sum is 41.

The square root of 71229983 is about 8439.7857200287. The cubic root of 71229983 is about 414.5283905698.

The spelling of 71229983 in words is "seventy-one million, two hundred twenty-nine thousand, nine hundred eighty-three".