9893421 has 20 divisors (see below), whose sum is σ = 15007872. Its totient is φ = 6493608.

The previous prime is 9893419. The next prime is 9893431. The reversal of 9893421 is 1243989.

It is not a de Polignac number, because 9893421 - 2¹ = 9893419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9893431) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4516 + ... + 6338.

Almost surely, 2^9893421 is an apocalyptic number.

It is an amenable number.

9893421 is a deficient number, since it is larger than the sum of its proper divisors (5114451).

9893421 is a wasteful number, since it uses less digits than its factorization.

9893421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1893 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 9893421 is about 3145.3808990327. The cubic root of 9893421 is about 214.6753419823.

The spelling of 9893421 in words is "nine million, eight hundred ninety-three thousand, four hundred twenty-one".