75872728 has 16 divisors (see below), whose sum is σ = 142354080. Its totient is φ = 37911648.

The previous prime is 75872689. The next prime is 75872747. The reversal of 75872728 is 82727857.

It is a congruent number.

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, 21025 + ... + 24367.

It is an arithmetic number, because the mean of its divisors is an integer number (8897130).

Almost surely, 2^75872728 is an apocalyptic number.

It is an amenable number.

75872728 is a deficient number, since it is larger than the sum of its proper divisors (66481352).

75872728 is a wasteful number, since it uses less digits than its factorization.

75872728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6186 (or 6182 counting only the distinct ones).

The product of its digits is 439040, while the sum is 46.

The square root of 75872728 is about 8710.4952786854. The cubic root of 75872728 is about 423.3457781835.

The spelling of 75872728 in words is "seventy-five million, eight hundred seventy-two thousand, seven hundred twenty-eight".