75857228 has 6 divisors (see below), whose sum is σ = 132750156. Its totient is φ = 37928612.

The previous prime is 75857209. The next prime is 75857233. The reversal of 75857228 is 82275857.

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 as a sum of consecutive naturals, namely, 9482150 + ... + 9482157.

It is an arithmetic number, because the mean of its divisors is an integer number (22125026).

Almost surely, 2^75857228 is an apocalyptic number.

It is an amenable number.

75857228 is a deficient number, since it is larger than the sum of its proper divisors (56892928).

75857228 is a wasteful number, since it uses less digits than its factorization.

75857228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18964311 (or 18964309 counting only the distinct ones).

The product of its digits is 313600, while the sum is 44.

The square root of 75857228 is about 8709.6055019731. The cubic root of 75857228 is about 423.3169478575.

The spelling of 75857228 in words is "seventy-five million, eight hundred fifty-seven thousand, two hundred twenty-eight".