28075036 has 24 divisors (see below), whose sum is σ = 53738496. Its totient is φ = 12727920.

The previous prime is 28075013. The next prime is 28075039. The reversal of 28075036 is 63057082.

It is a junction number, because it is equal to n+sod(n) for n = 28074989 and 28075007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28075039) 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 7 ways as a sum of consecutive naturals, for example, 25285 + ... + 26371.

It is an arithmetic number, because the mean of its divisors is an integer number (2239104).

Almost surely, 2^28075036 is an apocalyptic number.

It is an amenable number.

28075036 is a deficient number, since it is larger than the sum of its proper divisors (25663460).

28075036 is a wasteful number, since it uses less digits than its factorization.

28075036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 28075036 is about 5298.5881138281. The cubic root of 28075036 is about 303.9299093951.

The spelling of 28075036 in words is "twenty-eight million, seventy-five thousand, thirty-six".