409659163 has 2 divisors, whose sum is σ = 409659164. Its totient is φ = 409659162.

The previous prime is 409659143. The next prime is 409659179. The reversal of 409659163 is 361956904.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409659163 is a prime.

It is not a weakly prime, because it can be changed into another prime (409659113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204829581 + 204829582.

It is an arithmetic number, because the mean of its divisors is an integer number (204829582).

Almost surely, 2^409659163 is an apocalyptic number.

409659163 is a deficient number, since it is larger than the sum of its proper divisors (1).

409659163 is an equidigital number, since it uses as much as digits as its factorization.

409659163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 409659163 is about 20240.0386116232. The cubic root of 409659163 is about 742.6899682087.

The spelling of 409659163 in words is "four hundred nine million, six hundred fifty-nine thousand, one hundred sixty-three".