475821673 has 2 divisors, whose sum is σ = 475821674. Its totient is φ = 475821672.

The previous prime is 475821667. The next prime is 475821691. The reversal of 475821673 is 376128574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261404224 + 214417449 = 16168^2 + 14643^2 .

It is a cyclic number.

It is not a de Polignac number, because 475821673 - 2⁵ = 475821641 is a prime.

It is not a weakly prime, because it can be changed into another prime (475821173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237910836 + 237910837.

It is an arithmetic number, because the mean of its divisors is an integer number (237910837).

Almost surely, 2^475821673 is an apocalyptic number.

It is an amenable number.

475821673 is a deficient number, since it is larger than the sum of its proper divisors (1).

475821673 is an equidigital number, since it uses as much as digits as its factorization.

475821673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 475821673 is about 21813.3370441113. The cubic root of 475821673 is about 780.6950155245.

The spelling of 475821673 in words is "four hundred seventy-five million, eight hundred twenty-one thousand, six hundred seventy-three".