478686311 has 4 divisors (see below), whose sum is σ = 479004624. Its totient is φ = 478368000.

The previous prime is 478686269. The next prime is 478686343. The reversal of 478686311 is 113686874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478686311 - 2²⁶ = 411577447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478680311) 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 in 3 ways as a sum of consecutive naturals, for example, 156890 + ... + 159911.

It is an arithmetic number, because the mean of its divisors is an integer number (119751156).

Almost surely, 2^478686311 is an apocalyptic number.

478686311 is a deficient number, since it is larger than the sum of its proper divisors (318313).

478686311 is a wasteful number, since it uses less digits than its factorization.

478686311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318312.

The product of its digits is 193536, while the sum is 44.

The square root of 478686311 is about 21878.9010464420. The cubic root of 478686311 is about 782.2585813580.

It can be divided in two parts, 4786863 and 11, that added together give a palindrome (4786874).

The spelling of 478686311 in words is "four hundred seventy-eight million, six hundred eighty-six thousand, three hundred eleven".