427870 has 8 divisors (see below), whose sum is σ = 770184. Its totient is φ = 171144.

The previous prime is 427859. The next prime is 427877. The reversal of 427870 is 78724.

427870 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427877) by changing a digit.

427870 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 21384 + ... + 21403.

It is an arithmetic number, because the mean of its divisors is an integer number (96273).

2⁴²⁷⁸⁷⁰ is an apocalyptic number.

427870 is a deficient number, since it is larger than the sum of its proper divisors (342314).

427870 is a wasteful number, since it uses less digits than its factorization.

427870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42794.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 427870 is about 654.1177264071. The cubic root of 427870 is about 75.3535896312.

The spelling of 427870 in words is "four hundred twenty-seven thousand, eight hundred seventy".