475205897 has 4 divisors (see below), whose sum is σ = 484172100. Its totient is φ = 466239696.

The previous prime is 475205893. The next prime is 475205923. The reversal of 475205897 is 798502574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798502574 = 2 ⋅399251287.

It can be written as a sum of positive squares in 2 ways, for example, as 431434441 + 43771456 = 20771^2 + 6616^2 .

It is a cyclic number.

It is not a de Polignac number, because 475205897 - 2² = 475205893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475205891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4483022 + ... + 4483127.

It is an arithmetic number, because the mean of its divisors is an integer number (121043025).

Almost surely, 2^475205897 is an apocalyptic number.

It is an amenable number.

475205897 is a deficient number, since it is larger than the sum of its proper divisors (8966203).

475205897 is an equidigital number, since it uses as much as digits as its factorization.

475205897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966202.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 475205897 is about 21799.2178070682. The cubic root of 475205897 is about 780.3580960385.

The spelling of 475205897 in words is "four hundred seventy-five million, two hundred five thousand, eight hundred ninety-seven".