28196299 has 2 divisors, whose sum is σ = 28196300. Its totient is φ = 28196298.

The previous prime is 28196297. The next prime is 28196303. The reversal of 28196299 is 99269182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28196299 - 2¹ = 28196297 is a prime.

Together with 28196297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28196291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14098149 + 14098150.

It is an arithmetic number, because the mean of its divisors is an integer number (14098150).

Almost surely, 2^28196299 is an apocalyptic number.

28196299 is a deficient number, since it is larger than the sum of its proper divisors (1).

28196299 is an equidigital number, since it uses as much as digits as its factorization.

28196299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 46.

The square root of 28196299 is about 5310.0187381967. The cubic root of 28196299 is about 304.3668636222.

It can be divided in two parts, 281 and 96299, that added together give a triangular number (96580 = T₄₃₉).

The spelling of 28196299 in words is "twenty-eight million, one hundred ninety-six thousand, two hundred ninety-nine".