478038307 has 2 divisors, whose sum is σ = 478038308. Its totient is φ = 478038306.

The previous prime is 478038289. The next prime is 478038331. The reversal of 478038307 is 703830874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478038307 - 2²⁷ = 343820579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478038307.

It is not a weakly prime, because it can be changed into another prime (478038907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239019153 + 239019154.

It is an arithmetic number, because the mean of its divisors is an integer number (239019154).

Almost surely, 2^478038307 is an apocalyptic number.

478038307 is a deficient number, since it is larger than the sum of its proper divisors (1).

478038307 is an equidigital number, since it uses as much as digits as its factorization.

478038307 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 40.

The square root of 478038307 is about 21864.0871522229. The cubic root of 478038307 is about 781.9054373569.

The spelling of 478038307 in words is "four hundred seventy-eight million, thirty-eight thousand, three hundred seven".