478163407 has 2 divisors, whose sum is σ = 478163408. Its totient is φ = 478163406.

The previous prime is 478163381. The next prime is 478163429. The reversal of 478163407 is 704361874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478163407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478163407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478163467) 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, 239081703 + 239081704.

It is an arithmetic number, because the mean of its divisors is an integer number (239081704).

Almost surely, 2^478163407 is an apocalyptic number.

478163407 is a deficient number, since it is larger than the sum of its proper divisors (1).

478163407 is an equidigital number, since it uses as much as digits as its factorization.

478163407 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 478163407 is about 21866.9478208551. The cubic root of 478163407 is about 781.9736381945.

The spelling of 478163407 in words is "four hundred seventy-eight million, one hundred sixty-three thousand, four hundred seven".