28425433 has 4 divisors (see below), whose sum is σ = 28907280. Its totient is φ = 27943588.

The previous prime is 28425431. The next prime is 28425473. The reversal of 28425433 is 33452482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28425433 - 2¹ = 28425431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28425395 and 28425404.

It is not an unprimeable number, because it can be changed into a prime (28425431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240835 + ... + 240952.

It is an arithmetic number, because the mean of its divisors is an integer number (7226820).

Almost surely, 2^28425433 is an apocalyptic number.

It is an amenable number.

28425433 is a deficient number, since it is larger than the sum of its proper divisors (481847).

28425433 is an equidigital number, since it uses as much as digits as its factorization.

28425433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481846.

The product of its digits is 23040, while the sum is 31.

The square root of 28425433 is about 5331.5507125038. The cubic root of 28425433 is about 305.1891078427.

The spelling of 28425433 in words is "twenty-eight million, four hundred twenty-five thousand, four hundred thirty-three".