71356668 has 48 divisors (see below), whose sum is σ = 172655616. Its totient is φ = 22913280.

The previous prime is 71356639. The next prime is 71356679. The reversal of 71356668 is 86665317.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160855 + ... + 161297.

It is an arithmetic number, because the mean of its divisors is an integer number (3596992).

Almost surely, 2^71356668 is an apocalyptic number.

It is an amenable number.

71356668 is an abundant number, since it is smaller than the sum of its proper divisors (101298948).

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

71356668 is a wasteful number, since it uses less digits than its factorization.

71356668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 912 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 71356668 is about 8447.2876120090. The cubic root of 71356668 is about 414.7739960705.

The spelling of 71356668 in words is "seventy-one million, three hundred fifty-six thousand, six hundred sixty-eight".