409774163 has 2 divisors, whose sum is σ = 409774164. Its totient is φ = 409774162.

The previous prime is 409774117. The next prime is 409774181. The reversal of 409774163 is 361477904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409774163 - 2¹⁶ = 409708627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409774163.

It is not a weakly prime, because it can be changed into another prime (409774193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204887081 + 204887082.

It is an arithmetic number, because the mean of its divisors is an integer number (204887082).

Almost surely, 2^409774163 is an apocalyptic number.

409774163 is a deficient number, since it is larger than the sum of its proper divisors (1).

409774163 is an equidigital number, since it uses as much as digits as its factorization.

409774163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 409774163 is about 20242.8793159471. The cubic root of 409774163 is about 742.7594579726.

The spelling of 409774163 in words is "four hundred nine million, seven hundred seventy-four thousand, one hundred sixty-three".