71322005 has 8 divisors (see below), whose sum is σ = 85650432. Its totient is φ = 57014928.

The previous prime is 71321963. The next prime is 71322007. The reversal of 71322005 is 50022317.

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 71322005 - 2²⁰ = 70273429 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 (71322007) 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, 3284 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (10706304).

Almost surely, 2^71322005 is an apocalyptic number.

It is an amenable number.

71322005 is a deficient number, since it is larger than the sum of its proper divisors (14328427).

71322005 is a wasteful number, since it uses less digits than its factorization.

71322005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 71322005 is about 8445.2356391045. The cubic root of 71322005 is about 414.7068234661.

The spelling of 71322005 in words is "seventy-one million, three hundred twenty-two thousand, five".