478268407 has 2 divisors, whose sum is σ = 478268408. Its totient is φ = 478268406.

The previous prime is 478268387. The next prime is 478268423. The reversal of 478268407 is 704862874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478268407 - 2¹¹ = 478266359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478268447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239134203 + 239134204.

It is an arithmetic number, because the mean of its divisors is an integer number (239134204).

Almost surely, 2^478268407 is an apocalyptic number.

478268407 is a deficient number, since it is larger than the sum of its proper divisors (1).

478268407 is an equidigital number, since it uses as much as digits as its factorization.

478268407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602112, while the sum is 46.

The square root of 478268407 is about 21869.3485728313. The cubic root of 478268407 is about 782.0308719222.

The spelling of 478268407 in words is "four hundred seventy-eight million, two hundred sixty-eight thousand, four hundred seven".