28583745 has 8 divisors (see below), whose sum is σ = 45734016. Its totient is φ = 15244656.

The previous prime is 28583717. The next prime is 28583747. The reversal of 28583745 is 54738582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28583745 - 2¹⁶ = 28518209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28583697 and 28583706.

It is not an unprimeable number, because it can be changed into a prime (28583747) 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, 952777 + ... + 952806.

It is an arithmetic number, because the mean of its divisors is an integer number (5716752).

Almost surely, 2^28583745 is an apocalyptic number.

It is an amenable number.

28583745 is a deficient number, since it is larger than the sum of its proper divisors (17150271).

28583745 is a wasteful number, since it uses less digits than its factorization.

28583745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905591.

The product of its digits is 268800, while the sum is 42.

The square root of 28583745 is about 5346.3768105138. The cubic root of 28583745 is about 305.7546305035.

The spelling of 28583745 in words is "twenty-eight million, five hundred eighty-three thousand, seven hundred forty-five".