475316869 has 2 divisors, whose sum is σ = 475316870. Its totient is φ = 475316868.

The previous prime is 475316867. The next prime is 475316887. The reversal of 475316869 is 968613574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349203969 + 126112900 = 18687^2 + 11230^2 .

It is a cyclic number.

It is not a de Polignac number, because 475316869 - 2¹ = 475316867 is a prime.

It is a super-2 number, since 2×475316869² = 451852251911926322, which contains 22 as substring.

Together with 475316867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475316861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237658434 + 237658435.

It is an arithmetic number, because the mean of its divisors is an integer number (237658435).

Almost surely, 2^475316869 is an apocalyptic number.

It is an amenable number.

475316869 is a deficient number, since it is larger than the sum of its proper divisors (1).

475316869 is an equidigital number, since it uses as much as digits as its factorization.

475316869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 475316869 is about 21801.7629791721. The cubic root of 475316869 is about 780.4188354353.

The spelling of 475316869 in words is "four hundred seventy-five million, three hundred sixteen thousand, eight hundred sixty-nine".