478665067 has 4 divisors (see below), whose sum is σ = 484432200. Its totient is φ = 472897936.

The previous prime is 478665023. The next prime is 478665071. The reversal of 478665067 is 760566874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478665067 is a prime.

It is a super-2 number, since 2×478665067² = 458240492732228978, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478665067.

It is not an unprimeable number, because it can be changed into a prime (478665007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883442 + ... + 2883607.

It is an arithmetic number, because the mean of its divisors is an integer number (121108050).

Almost surely, 2^478665067 is an apocalyptic number.

478665067 is a deficient number, since it is larger than the sum of its proper divisors (5767133).

478665067 is an equidigital number, since it uses as much as digits as its factorization.

478665067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767132.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 478665067 is about 21878.4155504918. The cubic root of 478665067 is about 782.2470090285.

The spelling of 478665067 in words is "four hundred seventy-eight million, six hundred sixty-five thousand, sixty-seven".