71684552 has 16 divisors (see below), whose sum is σ = 135795660. Its totient is φ = 35472384.

The previous prime is 71684497. The next prime is 71684579. The reversal of 71684552 is 25548617.

It can be written as a sum of positive squares in 2 ways, for example, as 70324996 + 1359556 = 8386^2 + 1166^2 .

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 3 ways as a sum of consecutive naturals, for example, 45413 + ... + 46964.

Almost surely, 2^71684552 is an apocalyptic number.

It is an amenable number.

71684552 is a deficient number, since it is larger than the sum of its proper divisors (64111108).

71684552 is a wasteful number, since it uses less digits than its factorization.

71684552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92480 (or 92476 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 71684552 is about 8466.6730183703. The cubic root of 71684552 is about 415.4083212035.

The spelling of 71684552 in words is "seventy-one million, six hundred eighty-four thousand, five hundred fifty-two".