71322756 has 12 divisors (see below), whose sum is σ = 166419792. Its totient is φ = 23774248.

The previous prime is 71322749. The next prime is 71322763. The reversal of 71322756 is 65722317.

It is an interprime number because it is at equal distance from previous prime (71322749) and next prime (71322763).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 2971770 + ... + 2971793.

It is an arithmetic number, because the mean of its divisors is an integer number (13868316).

Almost surely, 2^71322756 is an apocalyptic number.

It is an amenable number.

71322756 is an abundant number, since it is smaller than the sum of its proper divisors (95097036).

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

71322756 is a wasteful number, since it uses less digits than its factorization.

71322756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943570 (or 5943568 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 71322756 is about 8445.2801019268. The cubic root of 71322756 is about 414.7082790418.

The spelling of 71322756 in words is "seventy-one million, three hundred twenty-two thousand, seven hundred fifty-six".