75004728 has 32 divisors (see below), whose sum is σ = 191875200. Its totient is φ = 24419808.

The previous prime is 75004711. The next prime is 75004729. The reversal of 75004728 is 82740057.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75004729) 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, 35308 + ... + 37371.

It is an arithmetic number, because the mean of its divisors is an integer number (5996100).

Almost surely, 2^75004728 is an apocalyptic number.

It is an amenable number.

75004728 is an abundant number, since it is smaller than the sum of its proper divisors (116870472).

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

75004728 is a wasteful number, since it uses less digits than its factorization.

75004728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72731 (or 72727 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 75004728 is about 8660.5270047498. The cubic root of 75004728 is about 421.7251941305.

The spelling of 75004728 in words is "seventy-five million, four thousand, seven hundred twenty-eight".