404666473 has 2 divisors, whose sum is σ = 404666474. Its totient is φ = 404666472.

The previous prime is 404666441. The next prime is 404666477. The reversal of 404666473 is 374666404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401120784 + 3545689 = 20028^2 + 1883^2 .

It is a cyclic number.

It is not a de Polignac number, because 404666473 - 2⁵ = 404666441 is a prime.

It is not a weakly prime, because it can be changed into another prime (404666477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202333236 + 202333237.

It is an arithmetic number, because the mean of its divisors is an integer number (202333237).

Almost surely, 2^404666473 is an apocalyptic number.

It is an amenable number.

404666473 is a deficient number, since it is larger than the sum of its proper divisors (1).

404666473 is an equidigital number, since it uses as much as digits as its factorization.

404666473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

The square root of 404666473 is about 20116.3235458172. The cubic root of 404666473 is about 739.6604681723.

The spelling of 404666473 in words is "four hundred four million, six hundred sixty-six thousand, four hundred seventy-three".