28659075 has 24 divisors (see below), whose sum is σ = 47633856. Its totient is φ = 15204000.

The previous prime is 28659031. The next prime is 28659083. The reversal of 28659075 is 57095682.

It is not a de Polignac number, because 28659075 - 2⁹ = 28658563 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 14920 + ... + 16730.

It is an arithmetic number, because the mean of its divisors is an integer number (1984744).

Almost surely, 2^28659075 is an apocalyptic number.

28659075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28659075 is a deficient number, since it is larger than the sum of its proper divisors (18974781).

28659075 is a wasteful number, since it uses less digits than its factorization.

28659075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 28659075 is about 5353.4171330095. The cubic root of 28659075 is about 306.0229915656.

The spelling of 28659075 in words is "twenty-eight million, six hundred fifty-nine thousand, seventy-five".