473344021 has 2 divisors, whose sum is σ = 473344022. Its totient is φ = 473344020.

The previous prime is 473343989. The next prime is 473344121. The reversal of 473344021 is 120443374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263412900 + 209931121 = 16230^2 + 14489^2 .

It is a cyclic number.

It is not a de Polignac number, because 473344021 - 2⁵ = 473343989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473344121) 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, 236672010 + 236672011.

It is an arithmetic number, because the mean of its divisors is an integer number (236672011).

Almost surely, 2^473344021 is an apocalyptic number.

It is an amenable number.

473344021 is a deficient number, since it is larger than the sum of its proper divisors (1).

473344021 is an equidigital number, since it uses as much as digits as its factorization.

473344021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 473344021 is about 21756.4707845735. The cubic root of 473344021 is about 779.3376038637.

Adding to 473344021 its reverse (120443374), we get a palindrome (593787395).

The spelling of 473344021 in words is "four hundred seventy-three million, three hundred forty-four thousand, twenty-one".