475735409 has 2 divisors, whose sum is σ = 475735410. Its totient is φ = 475735408.

The previous prime is 475735399. The next prime is 475735411. The reversal of 475735409 is 904537574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474586225 + 1149184 = 21785^2 + 1072^2 .

It is a cyclic number.

It is not a de Polignac number, because 475735409 - 2¹² = 475731313 is a prime.

Together with 475735411, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 475735409.

It is not a weakly prime, because it can be changed into another prime (475735009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237867704 + 237867705.

It is an arithmetic number, because the mean of its divisors is an integer number (237867705).

Almost surely, 2^475735409 is an apocalyptic number.

It is an amenable number.

475735409 is a deficient number, since it is larger than the sum of its proper divisors (1).

475735409 is an equidigital number, since it uses as much as digits as its factorization.

475735409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 475735409 is about 21811.3596320816. The cubic root of 475735409 is about 780.6478340215.

The spelling of 475735409 in words is "four hundred seventy-five million, seven hundred thirty-five thousand, four hundred nine".