427001166 has 16 divisors (see below), whose sum is σ = 948891600. Its totient is φ = 142333704.

The previous prime is 427001147. The next prime is 427001167. The reversal of 427001166 is 661100724.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427001167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3953661 + ... + 3953768.

It is an arithmetic number, because the mean of its divisors is an integer number (59305725).

Almost surely, 2^427001166 is an apocalyptic number.

427001166 is an abundant number, since it is smaller than the sum of its proper divisors (521890434).

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

427001166 is a wasteful number, since it uses less digits than its factorization.

427001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907440 (or 7907434 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 427001166 is about 20664.0065331000. The cubic root of 427001166 is about 753.0255066676.

The spelling of 427001166 in words is "four hundred twenty-seven million, one thousand, one hundred sixty-six".