888421 has 12 divisors (see below), whose sum is σ = 987552. Its totient is φ = 797544.

The previous prime is 888413. The next prime is 888427. The reversal of 888421 is 124888.

It is not a de Polignac number, because 888421 - 2³ = 888413 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888427) 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 11 ways as a sum of consecutive naturals, for example, 8250 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (82296).

2⁸⁸⁸⁴²¹ is an apocalyptic number.

It is an amenable number.

888421 is a deficient number, since it is larger than the sum of its proper divisors (99131).

888421 is a wasteful number, since it uses less digits than its factorization.

888421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 149 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 888421 is about 942.5608733657. The cubic root of 888421 is about 96.1330980792.

The spelling of 888421 in words is "eight hundred eighty-eight thousand, four hundred twenty-one".