75728104 has 16 divisors (see below), whose sum is σ = 142136100. Its totient is φ = 37825152.

The previous prime is 75728101. The next prime is 75728123. The reversal of 75728104 is 40182757.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75655204 + 72900 = 8698^2 + 270^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75728104.

It is not an unprimeable number, because it can be changed into a prime (75728101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4462 + ... + 13090.

Almost surely, 2^75728104 is an apocalyptic number.

It is an amenable number.

75728104 is a deficient number, since it is larger than the sum of its proper divisors (66407996).

75728104 is a wasteful number, since it uses less digits than its factorization.

75728104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9732 (or 9728 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 75728104 is about 8702.1896095178. The cubic root of 75728104 is about 423.0766217315.

The spelling of 75728104 in words is "seventy-five million, seven hundred twenty-eight thousand, one hundred four".