8921841 has 8 divisors (see below), whose sum is σ = 12059040. Its totient is φ = 5866272.

The previous prime is 8921837. The next prime is 8921863. The reversal of 8921841 is 1481298.

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

It is not a de Polignac number, because 8921841 - 2² = 8921837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8921441) 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, 20151 + ... + 20588.

It is an arithmetic number, because the mean of its divisors is an integer number (1507380).

Almost surely, 2^8921841 is an apocalyptic number.

It is an amenable number.

8921841 is a deficient number, since it is larger than the sum of its proper divisors (3137199).

8921841 is a wasteful number, since it uses less digits than its factorization.

8921841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40815.

The product of its digits is 4608, while the sum is 33.

The square root of 8921841 is about 2986.9450949088. The cubic root of 8921841 is about 207.4044927481.

The spelling of 8921841 in words is "eight million, nine hundred twenty-one thousand, eight hundred forty-one".