427843663 has 8 divisors (see below), whose sum is σ = 460939248. Its totient is φ = 394774464.

The previous prime is 427843643. The next prime is 427843711. The reversal of 427843663 is 366348724.

It is a happy number.

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-427843663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427843643) 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, 38595 + ... + 48427.

It is an arithmetic number, because the mean of its divisors is an integer number (57617406).

Almost surely, 2^427843663 is an apocalyptic number.

427843663 is a deficient number, since it is larger than the sum of its proper divisors (33095585).

427843663 is a wasteful number, since it uses less digits than its factorization.

427843663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13193.

The product of its digits is 580608, while the sum is 43.

The square root of 427843663 is about 20684.3821034132. The cubic root of 427843663 is about 753.5204350096.

The spelling of 427843663 in words is "four hundred twenty-seven million, eight hundred forty-three thousand, six hundred sixty-three".