28267433 has 2 divisors, whose sum is σ = 28267434. Its totient is φ = 28267432.

The previous prime is 28267429. The next prime is 28267451. The reversal of 28267433 is 33476282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27583504 + 683929 = 5252^2 + 827^2 .

It is a cyclic number.

It is not a de Polignac number, because 28267433 - 2² = 28267429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28267393 and 28267402.

It is not a weakly prime, because it can be changed into another prime (28267493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14133716 + 14133717.

It is an arithmetic number, because the mean of its divisors is an integer number (14133717).

Almost surely, 2^28267433 is an apocalyptic number.

It is an amenable number.

28267433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28267433 is an equidigital number, since it uses as much as digits as its factorization.

28267433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 35.

The square root of 28267433 is about 5316.7126121317. The cubic root of 28267433 is about 304.6226022796.

The spelling of 28267433 in words is "twenty-eight million, two hundred sixty-seven thousand, four hundred thirty-three".