478287307 has 2 divisors, whose sum is σ = 478287308. Its totient is φ = 478287306.

The previous prime is 478287259. The next prime is 478287319. The reversal of 478287307 is 703782874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478287307 - 2⁷ = 478287179 is a prime.

It is not a weakly prime, because it can be changed into another prime (478287907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239143653 + 239143654.

It is an arithmetic number, because the mean of its divisors is an integer number (239143654).

Almost surely, 2^478287307 is an apocalyptic number.

478287307 is a deficient number, since it is larger than the sum of its proper divisors (1).

478287307 is an equidigital number, since it uses as much as digits as its factorization.

478287307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 46.

The square root of 478287307 is about 21869.7806801989. The cubic root of 478287307 is about 782.0411731036.

The spelling of 478287307 in words is "four hundred seventy-eight million, two hundred eighty-seven thousand, three hundred seven".