421862 has 8 divisors (see below), whose sum is σ = 723216. Its totient is φ = 180792.

The previous prime is 421847. The next prime is 421891. The reversal of 421862 is 268124.

421862 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15053 + ... + 15080.

It is an arithmetic number, because the mean of its divisors is an integer number (90402).

2⁴²¹⁸⁶² is an apocalyptic number.

421862 is a deficient number, since it is larger than the sum of its proper divisors (301354).

421862 is a wasteful number, since it uses less digits than its factorization.

421862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30142.

The product of its digits is 768, while the sum is 23.

The square root of 421862 is about 649.5090453566. The cubic root of 421862 is about 74.9992296217. Note that the first 3 decimals are identical.

Adding to 421862 its reverse (268124), we get a palindrome (689986).

The spelling of 421862 in words is "four hundred twenty-one thousand, eight hundred sixty-two".