71164422 has 24 divisors (see below), whose sum is σ = 176216976. Its totient is φ = 20332656.

The previous prime is 71164421. The next prime is 71164427. The reversal of 71164422 is 22446117.

71164422 is a `hidden beast` number, since 7 + 11 + 644 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71164421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282273 + ... + 282524.

It is an arithmetic number, because the mean of its divisors is an integer number (7342374).

Almost surely, 2^71164422 is an apocalyptic number.

71164422 is an abundant number, since it is smaller than the sum of its proper divisors (105052554).

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

71164422 is a wasteful number, since it uses less digits than its factorization.

71164422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564812 (or 564809 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 71164422 is about 8435.9007817778. The cubic root of 71164422 is about 414.4011724288.

The spelling of 71164422 in words is "seventy-one million, one hundred sixty-four thousand, four hundred twenty-two".