427566 has 8 divisors (see below), whose sum is σ = 855144. Its totient is φ = 142520.

The previous prime is 427541. The next prime is 427579. The reversal of 427566 is 665724.

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

427566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35625 + ... + 35636.

It is an arithmetic number, because the mean of its divisors is an integer number (106893).

2⁴²⁷⁵⁶⁶ is an apocalyptic number.

427566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427566 is a wasteful number, since it uses less digits than its factorization.

427566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71266.

The product of its digits is 10080, while the sum is 30.

The square root of 427566 is about 653.8853110447. The cubic root of 427566 is about 75.3357392571.

The spelling of 427566 in words is "four hundred twenty-seven thousand, five hundred sixty-six".