409506563 has 8 divisors (see below), whose sum is σ = 434208720. Its totient is φ = 385119360.

The previous prime is 409506553. The next prime is 409506571. The reversal of 409506563 is 365605904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-409506563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409506553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76058 + ... + 81263.

It is an arithmetic number, because the mean of its divisors is an integer number (54276090).

Almost surely, 2^409506563 is an apocalyptic number.

409506563 is a deficient number, since it is larger than the sum of its proper divisors (24702157).

409506563 is a wasteful number, since it uses less digits than its factorization.

409506563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157477.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 409506563 is about 20236.2685048405. The cubic root of 409506563 is about 742.5977382325.

The spelling of 409506563 in words is "four hundred nine million, five hundred six thousand, five hundred sixty-three".