478323827 has 4 divisors (see below), whose sum is σ = 491251536. Its totient is φ = 465396120.

The previous prime is 478323821. The next prime is 478323869. The reversal of 478323827 is 728323874.

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 478323827 - 2¹⁴ = 478307443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478323821) 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, 6463799 + ... + 6463872.

It is an arithmetic number, because the mean of its divisors is an integer number (122812884).

Almost surely, 2^478323827 is an apocalyptic number.

478323827 is a deficient number, since it is larger than the sum of its proper divisors (12927709).

478323827 is a wasteful number, since it uses less digits than its factorization.

478323827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12927708.

The product of its digits is 451584, while the sum is 44.

The square root of 478323827 is about 21870.6156063335. The cubic root of 478323827 is about 782.0610770513.

The spelling of 478323827 in words is "four hundred seventy-eight million, three hundred twenty-three thousand, eight hundred twenty-seven".