473707021 has 2 divisors, whose sum is σ = 473707022. Its totient is φ = 473707020.

The previous prime is 473707019. The next prime is 473707037. The reversal of 473707021 is 120707374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411075625 + 62631396 = 20275^2 + 7914^2 .

It is a cyclic number.

It is not a de Polignac number, because 473707021 - 2¹ = 473707019 is a prime.

Together with 473707019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473707051) 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, 236853510 + 236853511.

It is an arithmetic number, because the mean of its divisors is an integer number (236853511).

Almost surely, 2^473707021 is an apocalyptic number.

It is an amenable number.

473707021 is a deficient number, since it is larger than the sum of its proper divisors (1).

473707021 is an equidigital number, since it uses as much as digits as its factorization.

473707021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 473707021 is about 21764.8115314606. The cubic root of 473707021 is about 779.5367734961.

The spelling of 473707021 in words is "four hundred seventy-three million, seven hundred seven thousand, twenty-one".