478338017 has 2 divisors, whose sum is σ = 478338018. Its totient is φ = 478338016.

The previous prime is 478338011. The next prime is 478338019. The reversal of 478338017 is 710833874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477029281 + 1308736 = 21841^2 + 1144^2 .

It is a cyclic number.

It is not a de Polignac number, because 478338017 - 2⁶ = 478337953 is a prime.

Together with 478338019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478338011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239169008 + 239169009.

It is an arithmetic number, because the mean of its divisors is an integer number (239169009).

Almost surely, 2^478338017 is an apocalyptic number.

It is an amenable number.

478338017 is a deficient number, since it is larger than the sum of its proper divisors (1).

478338017 is an equidigital number, since it uses as much as digits as its factorization.

478338017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 478338017 is about 21870.9400118056. The cubic root of 478338017 is about 782.0688105409.

The spelling of 478338017 in words is "four hundred seventy-eight million, three hundred thirty-eight thousand, seventeen".