71411764 has 24 divisors (see below), whose sum is σ = 133184520. Its totient is φ = 33386496.

The previous prime is 71411741. The next prime is 71411779. The reversal of 71411764 is 46711417.

It can be written as a sum of positive squares in 4 ways, for example, as 23912100 + 47499664 = 4890^2 + 6892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7332 + ... + 14020.

It is an arithmetic number, because the mean of its divisors is an integer number (5549355).

Almost surely, 2^71411764 is an apocalyptic number.

It is an amenable number.

71411764 is a deficient number, since it is larger than the sum of its proper divisors (61772756).

71411764 is a wasteful number, since it uses less digits than its factorization.

71411764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6865 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 71411764 is about 8450.5481479014. The cubic root of 71411764 is about 414.8807205465.

The spelling of 71411764 in words is "seventy-one million, four hundred eleven thousand, seven hundred sixty-four".