6238421 has 8 divisors (see below), whose sum is σ = 7197120. Its totient is φ = 5296608.

The previous prime is 6238411. The next prime is 6238423. The reversal of 6238421 is 1248326.

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

It is a cyclic number.

It is not a de Polignac number, because 6238421 - 2¹⁰ = 6237397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6238423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3416 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 2^6238421 is an apocalyptic number.

It is an amenable number.

6238421 is a deficient number, since it is larger than the sum of its proper divisors (958699).

6238421 is a wasteful number, since it uses less digits than its factorization.

6238421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443.

The product of its digits is 2304, while the sum is 26.

The square root of 6238421 is about 2497.6831264194. The cubic root of 6238421 is about 184.0877515432.

It can be divided in two parts, 62 and 38421, that added together give a palindrome (38483).

The spelling of 6238421 in words is "six million, two hundred thirty-eight thousand, four hundred twenty-one".