8089421 has 12 divisors (see below), whose sum is σ = 8779680. Its totient is φ = 7432560.

The previous prime is 8089409. The next prime is 8089451. The reversal of 8089421 is 1249808.

It is a happy number.

It is not a de Polignac number, because 8089421 - 2¹⁰ = 8088397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8089451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25856 + ... + 26166.

It is an arithmetic number, because the mean of its divisors is an integer number (731640).

Almost surely, 2^8089421 is an apocalyptic number.

It is an amenable number.

8089421 is a deficient number, since it is larger than the sum of its proper divisors (690259).

8089421 is a wasteful number, since it uses less digits than its factorization.

8089421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 8089421 is about 2844.1907460647. The cubic root of 8089421 is about 200.7424156847.

The spelling of 8089421 in words is "eight million, eighty-nine thousand, four hundred twenty-one".