476816321 has 4 divisors (see below), whose sum is σ = 484633044. Its totient is φ = 468999600.

The previous prime is 476816303. The next prime is 476816341. The reversal of 476816321 is 123618674.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22657600 + 454158721 = 4760^2 + 21311^2 .

It is a cyclic number.

It is not a de Polignac number, because 476816321 - 2⁶ = 476816257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (476816341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908270 + ... + 3908391.

It is an arithmetic number, because the mean of its divisors is an integer number (121158261).

Almost surely, 2^476816321 is an apocalyptic number.

It is an amenable number.

476816321 is a deficient number, since it is larger than the sum of its proper divisors (7816723).

476816321 is an equidigital number, since it uses as much as digits as its factorization.

476816321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816722.

The product of its digits is 48384, while the sum is 38.

The square root of 476816321 is about 21836.1242211158. The cubic root of 476816321 is about 781.2386199430.

The spelling of 476816321 in words is "four hundred seventy-six million, eight hundred sixteen thousand, three hundred twenty-one".