478307827 has 2 divisors, whose sum is σ = 478307828. Its totient is φ = 478307826.

The previous prime is 478307813. The next prime is 478307833. The reversal of 478307827 is 728703874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478307827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478307887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239153913 + 239153914.

It is an arithmetic number, because the mean of its divisors is an integer number (239153914).

Almost surely, 2^478307827 is an apocalyptic number.

478307827 is a deficient number, since it is larger than the sum of its proper divisors (1).

478307827 is an equidigital number, since it uses as much as digits as its factorization.

478307827 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 478307827 is about 21870.2498156743. The cubic root of 478307827 is about 782.0523569361.

The spelling of 478307827 in words is "four hundred seventy-eight million, three hundred seven thousand, eight hundred twenty-seven".