427738563 has 56 divisors (see below), whose sum is σ = 740616800. Its totient is φ = 241864704.

The previous prime is 427738559. The next prime is 427738573. The reversal of 427738563 is 365837724.

It is not a de Polignac number, because 427738563 - 2² = 427738559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427738543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 555843 + ... + 556611.

It is an arithmetic number, because the mean of its divisors is an integer number (13225300).

Almost surely, 2^427738563 is an apocalyptic number.

427738563 is a deficient number, since it is larger than the sum of its proper divisors (312878237).

427738563 is an equidigital number, since it uses as much as digits as its factorization.

427738563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 888 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 427738563 is about 20681.8413832038. The cubic root of 427738563 is about 753.4587290718.

The spelling of 427738563 in words is "four hundred twenty-seven million, seven hundred thirty-eight thousand, five hundred sixty-three".