478656443 has 4 divisors (see below), whose sum is σ = 478748928. Its totient is φ = 478563960.

The previous prime is 478656421. The next prime is 478656449. The reversal of 478656443 is 344656874.

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 478656443 - 2²² = 474462139 is a prime.

It is a super-2 number, since 2×478656443² = 458223980850824498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478656449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37988 + ... + 48993.

It is an arithmetic number, because the mean of its divisors is an integer number (119687232).

Almost surely, 2^478656443 is an apocalyptic number.

478656443 is a deficient number, since it is larger than the sum of its proper divisors (92485).

478656443 is an equidigital number, since it uses as much as digits as its factorization.

478656443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92484.

The product of its digits is 1935360, while the sum is 47.

The square root of 478656443 is about 21878.2184603774. The cubic root of 478656443 is about 782.2423111446.

The spelling of 478656443 in words is "four hundred seventy-eight million, six hundred fifty-six thousand, four hundred forty-three".