563469913 has 8 divisors (see below), whose sum is σ = 617188680. Its totient is φ = 512037120.

The previous prime is 563469817. The next prime is 563469937. The reversal of 563469913 is 319964365.

It can be written as a sum of positive squares in 4 ways, for example, as 217621504 + 345848409 = 14752^2 + 18597^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563469913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563469953) 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, 570978 + ... + 571963.

It is an arithmetic number, because the mean of its divisors is an integer number (77148585).

Almost surely, 2^563469913 is an apocalyptic number.

It is an amenable number.

563469913 is a deficient number, since it is larger than the sum of its proper divisors (53718767).

563469913 is a wasteful number, since it uses less digits than its factorization.

563469913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142987.

The product of its digits is 524880, while the sum is 46.

The square root of 563469913 is about 23737.5212058884. The cubic root of 563469913 is about 825.9559964012.

The spelling of 563469913 in words is "five hundred sixty-three million, four hundred sixty-nine thousand, nine hundred thirteen".