28455199 has 2 divisors, whose sum is σ = 28455200. Its totient is φ = 28455198.

The previous prime is 28455197. The next prime is 28455221. The reversal of 28455199 is 99155482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28455199 - 2¹ = 28455197 is a prime.

Together with 28455197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28455197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227599 + 14227600.

It is an arithmetic number, because the mean of its divisors is an integer number (14227600).

Almost surely, 2^28455199 is an apocalyptic number.

28455199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28455199 is an equidigital number, since it uses as much as digits as its factorization.

28455199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 43.

The square root of 28455199 is about 5334.3414776334. The cubic root of 28455199 is about 305.2955980404.

The spelling of 28455199 in words is "twenty-eight million, four hundred fifty-five thousand, one hundred ninety-nine".