427166 has 8 divisors (see below), whose sum is σ = 645840. Its totient is φ = 211888.

The previous prime is 427151. The next prime is 427169. The reversal of 427166 is 661724.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427169) by changing a digit.

427166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (80730).

2⁴²⁷¹⁶⁶ is an apocalyptic number.

427166 is a deficient number, since it is larger than the sum of its proper divisors (218674).

427166 is a wasteful number, since it uses less digits than its factorization.

427166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its digits is 2016, while the sum is 26.

The square root of 427166 is about 653.5793754396. The cubic root of 427166 is about 75.3122390273.

The spelling of 427166 in words is "four hundred twenty-seven thousand, one hundred sixty-six".