473783809 has 2 divisors, whose sum is σ = 473783810. Its totient is φ = 473783808.

The previous prime is 473783771. The next prime is 473783833. The reversal of 473783809 is 908387374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472410225 + 1373584 = 21735^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 473783809 - 2²³ = 465395201 is a prime.

It is not a weakly prime, because it can be changed into another prime (473783839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236891904 + 236891905.

It is an arithmetic number, because the mean of its divisors is an integer number (236891905).

Almost surely, 2^473783809 is an apocalyptic number.

It is an amenable number.

473783809 is a deficient number, since it is larger than the sum of its proper divisors (1).

473783809 is an equidigital number, since it uses as much as digits as its factorization.

473783809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 473783809 is about 21766.5755000643. The cubic root of 473783809 is about 779.5788922411.

The spelling of 473783809 in words is "four hundred seventy-three million, seven hundred eighty-three thousand, eight hundred nine".