71012928 has 56 divisors (see below), whose sum is σ = 214733632. Its totient is φ = 20289024.

The previous prime is 71012923. The next prime is 71012989. The reversal of 71012928 is 82921017.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 71012895 and 71012904.

It is not an unprimeable number, because it can be changed into a prime (71012923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25075 + ... + 27762.

Almost surely, 2^71012928 is an apocalyptic number.

It is an amenable number.

71012928 is an abundant number, since it is smaller than the sum of its proper divisors (143720704).

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

71012928 is a wasteful number, since it uses less digits than its factorization.

71012928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52859 (or 52849 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 71012928 is about 8426.9168739225. The cubic root of 71012928 is about 414.1069060423.

The spelling of 71012928 in words is "seventy-one million, twelve thousand, nine hundred twenty-eight".