478002347 has 2 divisors, whose sum is σ = 478002348. Its totient is φ = 478002346.

The previous prime is 478002293. The next prime is 478002359. The reversal of 478002347 is 743200874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478002347 - 2¹² = 477998251 is a prime.

It is equal to p_25256294 and since 478002347 and 25256294 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (478002367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239001173 + 239001174.

It is an arithmetic number, because the mean of its divisors is an integer number (239001174).

Almost surely, 2^478002347 is an apocalyptic number.

478002347 is a deficient number, since it is larger than the sum of its proper divisors (1).

478002347 is an equidigital number, since it uses as much as digits as its factorization.

478002347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 478002347 is about 21863.2647836502. The cubic root of 478002347 is about 781.8858308217.

The spelling of 478002347 in words is "four hundred seventy-eight million, two thousand, three hundred forty-seven".