478838811 has 16 divisors (see below), whose sum is σ = 698100480. Its totient is φ = 289535520.

The previous prime is 478838791. The next prime is 478838821. The reversal of 478838811 is 118838874.

It is not a de Polignac number, because 478838811 - 2⁶ = 478838747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478838821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040 + ... + 31013.

It is an arithmetic number, because the mean of its divisors is an integer number (43631280).

Almost surely, 2^478838811 is an apocalyptic number.

478838811 is a deficient number, since it is larger than the sum of its proper divisors (219261669).

478838811 is a wasteful number, since it uses less digits than its factorization.

478838811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33506.

The product of its digits is 344064, while the sum is 48.

The square root of 478838811 is about 21882.3858616925. The cubic root of 478838811 is about 782.3416432469.

The spelling of 478838811 in words is "four hundred seventy-eight million, eight hundred thirty-eight thousand, eight hundred eleven".