427889167 has 4 divisors (see below), whose sum is σ = 453059136. Its totient is φ = 402719200.

The previous prime is 427889159. The next prime is 427889183. The reversal of 427889167 is 761988724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427889167 - 2³ = 427889159 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 (427889107) 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 3 ways as a sum of consecutive naturals, for example, 12584959 + ... + 12584992.

It is an arithmetic number, because the mean of its divisors is an integer number (113264784).

Almost surely, 2^427889167 is an apocalyptic number.

427889167 is a deficient number, since it is larger than the sum of its proper divisors (25169969).

427889167 is a wasteful number, since it uses less digits than its factorization.

427889167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25169968.

The product of its digits is 1354752, while the sum is 52.

The square root of 427889167 is about 20685.4820345091. The cubic root of 427889167 is about 753.5471480213.

The spelling of 427889167 in words is "four hundred twenty-seven million, eight hundred eighty-nine thousand, one hundred sixty-seven".