28025433 has 12 divisors (see below), whose sum is σ = 41980848. Its totient is φ = 18683460.

The previous prime is 28025419. The next prime is 28025441. The reversal of 28025433 is 33452082.

It is not a de Polignac number, because 28025433 - 2¹⁴ = 28009049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28025397 and 28025406.

It is not an unprimeable number, because it can be changed into a prime (28025483) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 57423 + ... + 57908.

It is an arithmetic number, because the mean of its divisors is an integer number (3498404).

Almost surely, 2^28025433 is an apocalyptic number.

It is an amenable number.

28025433 is a deficient number, since it is larger than the sum of its proper divisors (13955415).

28025433 is an equidigital number, since it uses as much as digits as its factorization.

28025433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115346 (or 115334 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 28025433 is about 5293.9052692696. The cubic root of 28025433 is about 303.7508093257.

The spelling of 28025433 in words is "twenty-eight million, twenty-five thousand, four hundred thirty-three".