71152328 has 16 divisors (see below), whose sum is σ = 143673180. Its totient is φ = 32839488.

The previous prime is 71152309. The next prime is 71152339. The reversal of 71152328 is 82325117.

It can be written as a sum of positive squares in 2 ways, for example, as 63075364 + 8076964 = 7942^2 + 2842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71152328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341975 + ... + 342182.

Almost surely, 2^71152328 is an apocalyptic number.

It is an amenable number.

71152328 is an abundant number, since it is smaller than the sum of its proper divisors (72520852).

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

71152328 is a wasteful number, since it uses less digits than its factorization.

71152328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684176 (or 684172 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 71152328 is about 8435.1839339756. The cubic root of 71152328 is about 414.3776960362.

The spelling of 71152328 in words is "seventy-one million, one hundred fifty-two thousand, three hundred twenty-eight".