71033984 has 32 divisors (see below), whose sum is σ = 161731200. Its totient is φ = 30442752.

The previous prime is 71033971. The next prime is 71033987. The reversal of 71033984 is 48933017.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (71033987) by changing a digit.

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, 38744 + ... + 40535.

It is an arithmetic number, because the mean of its divisors is an integer number (5054100).

Almost surely, 2^71033984 is an apocalyptic number.

It is an amenable number.

71033984 is an abundant number, since it is smaller than the sum of its proper divisors (90697216).

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

71033984 is an equidigital number, since it uses as much as digits as its factorization.

71033984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79300 (or 79288 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 71033984 is about 8428.1661113198. The cubic root of 71033984 is about 414.1478308598.

The spelling of 71033984 in words is "seventy-one million, thirty-three thousand, nine hundred eighty-four".