71322672 has 20 divisors (see below), whose sum is σ = 184250360. Its totient is φ = 23774208.

The previous prime is 71322653. The next prime is 71322677. The reversal of 71322672 is 27622317.

It is not an unprimeable number, because it can be changed into a prime (71322677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742897 + ... + 742992.

It is an arithmetic number, because the mean of its divisors is an integer number (9212518).

Almost surely, 2^71322672 is an apocalyptic number.

It is an amenable number.

71322672 is an abundant number, since it is smaller than the sum of its proper divisors (112927688).

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

71322672 is a wasteful number, since it uses less digits than its factorization.

71322672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485900 (or 1485894 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 71322672 is about 8445.2751287332. The cubic root of 71322672 is about 414.7081162349.

Adding to 71322672 its reverse (27622317), we get a palindrome (98944989).

The spelling of 71322672 in words is "seventy-one million, three hundred twenty-two thousand, six hundred seventy-two".