8838421 has 4 divisors (see below), whose sum is σ = 8944992. Its totient is φ = 8731852.

The previous prime is 8838413. The next prime is 8838433. The reversal of 8838421 is 1248388.

8838421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8838421 - 2³ = 8838413 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 (8838451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53161 + ... + 53326.

It is an arithmetic number, because the mean of its divisors is an integer number (2236248).

Almost surely, 2^8838421 is an apocalyptic number.

It is an amenable number.

8838421 is a deficient number, since it is larger than the sum of its proper divisors (106571).

8838421 is a wasteful number, since it uses less digits than its factorization.

8838421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106570.

The product of its digits is 12288, while the sum is 34.

The square root of 8838421 is about 2972.9482000196. The cubic root of 8838421 is about 206.7560507678.

The spelling of 8838421 in words is "eight million, eight hundred thirty-eight thousand, four hundred twenty-one".