28355263 has 2 divisors, whose sum is σ = 28355264. Its totient is φ = 28355262.

The previous prime is 28355237. The next prime is 28355267. The reversal of 28355263 is 36255382.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28355263 - 2¹⁷ = 28224191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28355267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177631 + 14177632.

It is an arithmetic number, because the mean of its divisors is an integer number (14177632).

Almost surely, 2^28355263 is an apocalyptic number.

28355263 is a deficient number, since it is larger than the sum of its proper divisors (1).

28355263 is an equidigital number, since it uses as much as digits as its factorization.

28355263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 28355263 is about 5324.9660092812. The cubic root of 28355263 is about 304.9377746390.

The spelling of 28355263 in words is "twenty-eight million, three hundred fifty-five thousand, two hundred sixty-three".