71584868 has 6 divisors (see below), whose sum is σ = 125273526. Its totient is φ = 35792432.

The previous prime is 71584867. The next prime is 71584889. The reversal of 71584868 is 86848517.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39413284 + 32171584 = 6278^2 + 5672^2 .

It is not an unprimeable number, because it can be changed into a prime (71584867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8948105 + ... + 8948112.

It is an arithmetic number, because the mean of its divisors is an integer number (20878921).

Almost surely, 2^71584868 is an apocalyptic number.

It is an amenable number.

71584868 is a deficient number, since it is larger than the sum of its proper divisors (53688658).

71584868 is a wasteful number, since it uses less digits than its factorization.

71584868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17896221 (or 17896219 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 71584868 is about 8460.7841244178. The cubic root of 71584868 is about 415.2156773149.

The spelling of 71584868 in words is "seventy-one million, five hundred eighty-four thousand, eight hundred sixty-eight".