8675421 has 8 divisors (see below), whose sum is σ = 11605440. Its totient is φ = 5764512.

The previous prime is 8675413. The next prime is 8675441. The reversal of 8675421 is 1245768.

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

It is not a de Polignac number, because 8675421 - 2³ = 8675413 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8675441) 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, 3681 + ... + 5558.

It is an arithmetic number, because the mean of its divisors is an integer number (1450680).

Almost surely, 2^8675421 is an apocalyptic number.

It is an amenable number.

8675421 is a deficient number, since it is larger than the sum of its proper divisors (2930019).

8675421 is a wasteful number, since it uses less digits than its factorization.

8675421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555.

The product of its digits is 13440, while the sum is 33.

The square root of 8675421 is about 2945.4067630804. The cubic root of 8675421 is about 205.4771435795.

The spelling of 8675421 in words is "eight million, six hundred seventy-five thousand, four hundred twenty-one".