8421941 has 8 divisors (see below), whose sum is σ = 9237504. Its totient is φ = 7614720.

The previous prime is 8421929. The next prime is 8421961. The reversal of 8421941 is 1491248.

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 8421941 - 2⁶ = 8421877 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8421901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 4106.

It is an arithmetic number, because the mean of its divisors is an integer number (1154688).

Almost surely, 2^8421941 is an apocalyptic number.

It is an amenable number.

8421941 is a deficient number, since it is larger than the sum of its proper divisors (815563).

8421941 is a wasteful number, since it uses less digits than its factorization.

8421941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171.

The product of its digits is 2304, while the sum is 29.

The square root of 8421941 is about 2902.0580628237. The cubic root of 8421941 is about 203.4561075843.

The spelling of 8421941 in words is "eight million, four hundred twenty-one thousand, nine hundred forty-one".