8294921 has 4 divisors (see below), whose sum is σ = 8400000. Its totient is φ = 8189844.

The previous prime is 8294911. The next prime is 8294941. The reversal of 8294921 is 1294928.

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 8294921 - 2⁶ = 8294857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8294911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52421 + ... + 52578.

It is an arithmetic number, because the mean of its divisors is an integer number (2100000).

Almost surely, 2^8294921 is an apocalyptic number.

It is an amenable number.

8294921 is a deficient number, since it is larger than the sum of its proper divisors (105079).

8294921 is a wasteful number, since it uses less digits than its factorization.

8294921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105078.

The product of its digits is 10368, while the sum is 35.

The square root of 8294921 is about 2880.0904499685. The cubic root of 8294921 is about 202.4280778979.

The spelling of 8294921 in words is "eight million, two hundred ninety-four thousand, nine hundred twenty-one".