476722321 has 2 divisors, whose sum is σ = 476722322. Its totient is φ = 476722320.

The previous prime is 476722307. The next prime is 476722327. The reversal of 476722321 is 123227674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278222400 + 198499921 = 16680^2 + 14089^2 .

It is a cyclic number.

It is not a de Polignac number, because 476722321 - 2⁵ = 476722289 is a prime.

It is not a weakly prime, because it can be changed into another prime (476722327) 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 as a sum of consecutive naturals, namely, 238361160 + 238361161.

It is an arithmetic number, because the mean of its divisors is an integer number (238361161).

Almost surely, 2^476722321 is an apocalyptic number.

It is an amenable number.

476722321 is a deficient number, since it is larger than the sum of its proper divisors (1).

476722321 is an equidigital number, since it uses as much as digits as its factorization.

476722321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 476722321 is about 21833.9717184025. The cubic root of 476722321 is about 781.1872785401.

Adding to 476722321 its reverse (123227674), we get a palindrome (599949995).

The spelling of 476722321 in words is "four hundred seventy-six million, seven hundred twenty-two thousand, three hundred twenty-one".