478428163 has 2 divisors, whose sum is σ = 478428164. Its totient is φ = 478428162.

The previous prime is 478428103. The next prime is 478428193. The reversal of 478428163 is 361824874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478428163 is a prime.

It is not a weakly prime, because it can be changed into another prime (478428103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239214081 + 239214082.

It is an arithmetic number, because the mean of its divisors is an integer number (239214082).

Almost surely, 2^478428163 is an apocalyptic number.

478428163 is a deficient number, since it is larger than the sum of its proper divisors (1).

478428163 is an equidigital number, since it uses as much as digits as its factorization.

478428163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 43.

The square root of 478428163 is about 21873.0007772139. Note that the first 3 decimals coincide. The cubic root of 478428163 is about 782.1179361551.

The spelling of 478428163 in words is "four hundred seventy-eight million, four hundred twenty-eight thousand, one hundred sixty-three".