71304648 has 32 divisors (see below), whose sum is σ = 180708000. Its totient is φ = 23442048.

The previous prime is 71304643. The next prime is 71304659. The reversal of 71304648 is 84640317.

It is not an unprimeable number, because it can be changed into a prime (71304641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18598 + ... + 22101.

It is an arithmetic number, because the mean of its divisors is an integer number (5647125).

Almost surely, 2^71304648 is an apocalyptic number.

It is an amenable number.

71304648 is an abundant number, since it is smaller than the sum of its proper divisors (109403352).

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

71304648 is a wasteful number, since it uses less digits than its factorization.

71304648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40781 (or 40777 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 71304648 is about 8444.2079557529. The cubic root of 71304648 is about 414.6731795703.

The spelling of 71304648 in words is "seventy-one million, three hundred four thousand, six hundred forty-eight".