478403587 has 2 divisors, whose sum is σ = 478403588. Its totient is φ = 478403586.

The previous prime is 478403581. The next prime is 478403591. The reversal of 478403587 is 785304874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478403587 - 2¹⁵ = 478370819 is a prime.

It is not a weakly prime, because it can be changed into another prime (478403581) 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, 239201793 + 239201794.

It is an arithmetic number, because the mean of its divisors is an integer number (239201794).

Almost surely, 2^478403587 is an apocalyptic number.

478403587 is a deficient number, since it is larger than the sum of its proper divisors (1).

478403587 is an equidigital number, since it uses as much as digits as its factorization.

478403587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 46.

The square root of 478403587 is about 21872.4389815128. The cubic root of 478403587 is about 782.1045439255.

The spelling of 478403587 in words is "four hundred seventy-eight million, four hundred three thousand, five hundred eighty-seven".