475669 has 2 divisors, whose sum is σ = 475670. Its totient is φ = 475668.

The previous prime is 475649. The next prime is 475679. The reversal of 475669 is 966574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439569 + 36100 = 663^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 475669 - 2⁵ = 475637 is a prime.

It is a super-2 number, since 2×475669² = 452521995122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237834 + 237835.

It is an arithmetic number, because the mean of its divisors is an integer number (237835).

2⁴⁷⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

475669 is a deficient number, since it is larger than the sum of its proper divisors (1).

475669 is an equidigital number, since it uses as much as digits as its factorization.

475669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 475669 is about 689.6876104440. The cubic root of 475669 is about 78.0611508189.

The spelling of 475669 in words is "four hundred seventy-five thousand, six hundred sixty-nine".