478645199 has 2 divisors, whose sum is σ = 478645200. Its totient is φ = 478645198.

The previous prime is 478645129. The next prime is 478645201. The reversal of 478645199 is 991546874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478645199 - 2²⁴ = 461867983 is a prime.

Together with 478645201, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478645199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478645129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239322599 + 239322600.

It is an arithmetic number, because the mean of its divisors is an integer number (239322600).

Almost surely, 2^478645199 is an apocalyptic number.

478645199 is a deficient number, since it is larger than the sum of its proper divisors (1).

478645199 is an equidigital number, since it uses as much as digits as its factorization.

478645199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 478645199 is about 21877.9614909616. The cubic root of 478645199 is about 782.2361859431.

The spelling of 478645199 in words is "four hundred seventy-eight million, six hundred forty-five thousand, one hundred ninety-nine".