28568075 has 12 divisors (see below), whose sum is σ = 37508760. Its totient is φ = 21509760.

The previous prime is 28568051. The next prime is 28568083. The reversal of 28568075 is 57086582.

It is not a de Polignac number, because 28568075 - 2²⁴ = 11790859 is a prime.

It is a super-2 number, since 2×28568075² = 1632269818411250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33185 + ... + 34034.

It is an arithmetic number, because the mean of its divisors is an integer number (3125730).

Almost surely, 2^28568075 is an apocalyptic number.

28568075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28568075 is a deficient number, since it is larger than the sum of its proper divisors (8940685).

28568075 is a wasteful number, since it uses less digits than its factorization.

28568075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67246 (or 67241 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 28568075 is about 5344.9111311602. The cubic root of 28568075 is about 305.6987473334.

The spelling of 28568075 in words is "twenty-eight million, five hundred sixty-eight thousand, seventy-five".