417640563 has 8 divisors (see below), whose sum is σ = 618726800. Its totient is φ = 278427024.

The previous prime is 417640549. The next prime is 417640603. The reversal of 417640563 is 365046714.

It is a happy number.

417640563 is a `hidden beast` number, since 4 + 1 + 7 + 640 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 417640563 - 2⁶ = 417640499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (417640963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7734058 + ... + 7734111.

It is an arithmetic number, because the mean of its divisors is an integer number (77340850).

Almost surely, 2^417640563 is an apocalyptic number.

417640563 is a deficient number, since it is larger than the sum of its proper divisors (201086237).

417640563 is a wasteful number, since it uses less digits than its factorization.

417640563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468178 (or 15468172 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 417640563 is about 20436.2560905857. The cubic root of 417640563 is about 747.4822614479.

The spelling of 417640563 in words is "four hundred seventeen million, six hundred forty thousand, five hundred sixty-three".