475806969 has 27 divisors (see below), whose sum is σ = 756581007. Its totient is φ = 287931600.

The previous prime is 475806959. The next prime is 475806971. The reversal of 475806969 is 969608574.

The square root of 475806969 is 21813.

It is a perfect power (a square), and thus also a powerful number.

475806969 is a `hidden beast` number, since 475 + 80 + 6 + 96 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 377796969 + 98010000 = 19437^2 + 9900^2 .

It is not a de Polignac number, because 475806969 - 2⁵ = 475806937 is a prime.

It is a super-2 number, since 2×475806969² = 452784543497933922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (475806959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 719499 + ... + 720159.

Almost surely, 2^475806969 is an apocalyptic number.

475806969 is the 21813-rd square number.

475806969 is the 10907-th centered octagonal number.

It is an amenable number.

475806969 is a deficient number, since it is larger than the sum of its proper divisors (280774038).

475806969 is an equidigital number, since it uses as much as digits as its factorization.

475806969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The cubic root of 475806969 is about 780.6869736757.

The spelling of 475806969 in words is "four hundred seventy-five million, eight hundred six thousand, nine hundred sixty-nine".