478688659 has 2 divisors, whose sum is σ = 478688660. Its totient is φ = 478688658.

The previous prime is 478688621. The next prime is 478688663. The reversal of 478688659 is 956886874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478688659 - 2⁷ = 478688531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478688597 and 478688606.

It is not a weakly prime, because it can be changed into another prime (478688359) 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, 239344329 + 239344330.

It is an arithmetic number, because the mean of its divisors is an integer number (239344330).

Almost surely, 2^478688659 is an apocalyptic number.

478688659 is a deficient number, since it is larger than the sum of its proper divisors (1).

478688659 is an equidigital number, since it uses as much as digits as its factorization.

478688659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 61.

The square root of 478688659 is about 21878.9547053784. The cubic root of 478688659 is about 782.2598603724.

The spelling of 478688659 in words is "four hundred seventy-eight million, six hundred eighty-eight thousand, six hundred fifty-nine".