476409569 has 2 divisors, whose sum is σ = 476409570. Its totient is φ = 476409568.

The previous prime is 476409559. The next prime is 476409587. The reversal of 476409569 is 965904674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472845025 + 3564544 = 21745^2 + 1888^2 .

It is a cyclic number.

It is not a de Polignac number, because 476409569 - 2⁸ = 476409313 is a prime.

It is a super-3 number, since 3×476409569³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (476409529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238204784 + 238204785.

It is an arithmetic number, because the mean of its divisors is an integer number (238204785).

Almost surely, 2^476409569 is an apocalyptic number.

It is an amenable number.

476409569 is a deficient number, since it is larger than the sum of its proper divisors (1).

476409569 is an equidigital number, since it uses as much as digits as its factorization.

476409569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 476409569 is about 21826.8084932269. The cubic root of 476409569 is about 781.0164094475.

The spelling of 476409569 in words is "four hundred seventy-six million, four hundred nine thousand, five hundred sixty-nine".