427818 has 16 divisors (see below), whose sum is σ = 864576. Its totient is φ = 141120.

The previous prime is 427813. The next prime is 427849. The reversal of 427818 is 818724.

427818 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×427818² = 366056482248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427813) 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, 363 + ... + 993.

It is an arithmetic number, because the mean of its divisors is an integer number (54036).

2⁴²⁷⁸¹⁸ is an apocalyptic number.

427818 is an abundant number, since it is smaller than the sum of its proper divisors (436758).

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

427818 is a wasteful number, since it uses less digits than its factorization.

427818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its digits is 3584, while the sum is 30.

The square root of 427818 is about 654.0779770027. The cubic root of 427818 is about 75.3505368773.

The spelling of 427818 in words is "four hundred twenty-seven thousand, eight hundred eighteen".