28063207 has 2 divisors, whose sum is σ = 28063208. Its totient is φ = 28063206.

The previous prime is 28063201. The next prime is 28063237. The reversal of 28063207 is 70236082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28063207 - 2¹⁵ = 28030439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28063201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14031603 + 14031604.

It is an arithmetic number, because the mean of its divisors is an integer number (14031604).

Almost surely, 2^28063207 is an apocalyptic number.

28063207 is a deficient number, since it is larger than the sum of its proper divisors (1).

28063207 is an equidigital number, since it uses as much as digits as its factorization.

28063207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28063207 is about 5297.4717554698. The cubic root of 28063207 is about 303.8872179456.

Adding to 28063207 its reverse (70236082), we get a palindrome (98299289).

The spelling of 28063207 in words is "twenty-eight million, sixty-three thousand, two hundred seven".