478948505 has 16 divisors (see below), whose sum is σ = 657500160. Its totient is φ = 328093632.

The previous prime is 478948493. The next prime is 478948513. The reversal of 478948505 is 505849874.

It is a cyclic number.

It is not a de Polignac number, because 478948505 - 2⁶ = 478948441 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 31751 + ... + 44339.

It is an arithmetic number, because the mean of its divisors is an integer number (41093760).

Almost surely, 2^478948505 is an apocalyptic number.

It is an amenable number.

478948505 is a deficient number, since it is larger than the sum of its proper divisors (178551655).

478948505 is a wasteful number, since it uses less digits than its factorization.

478948505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13688.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 478948505 is about 21884.8921633167. The cubic root of 478948505 is about 782.4013791677.

The spelling of 478948505 in words is "four hundred seventy-eight million, nine hundred forty-eight thousand, five hundred five".