28672075 has 12 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 22892960.

The previous prime is 28672073. The next prime is 28672093. The reversal of 28672075 is 57027682.

It is not a de Polignac number, because 28672075 - 2¹ = 28672073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28672073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19206 + ... + 20644.

It is an arithmetic number, because the mean of its divisors is an integer number (2968560).

Almost surely, 2^28672075 is an apocalyptic number.

28672075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28672075 is a deficient number, since it is larger than the sum of its proper divisors (6950645).

28672075 is a wasteful number, since it uses less digits than its factorization.

28672075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2241 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 28672075 is about 5354.6311731061. The cubic root of 28672075 is about 306.0692561143.

It can be divided in two parts, 286 and 72075, that added together give a square (72361 = 269²).

The spelling of 28672075 in words is "twenty-eight million, six hundred seventy-two thousand, seventy-five".