427947 has 8 divisors (see below), whose sum is σ = 614544. Its totient is φ = 263328.

The previous prime is 427939. The next prime is 427949. The reversal of 427947 is 749724.

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

It is not a de Polignac number, because 427947 - 2³ = 427939 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 427947.

It is not an unprimeable number, because it can be changed into a prime (427949) 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, 5448 + ... + 5525.

It is an arithmetic number, because the mean of its divisors is an integer number (76818).

2⁴²⁷⁹⁴⁷ is an apocalyptic number.

427947 is a deficient number, since it is larger than the sum of its proper divisors (186597).

427947 is a wasteful number, since it uses less digits than its factorization.

427947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10989.

The product of its digits is 14112, while the sum is 33.

The square root of 427947 is about 654.1765816658. The cubic root of 427947 is about 75.3581096009.

The spelling of 427947 in words is "four hundred twenty-seven thousand, nine hundred forty-seven".