9398421 has 12 divisors (see below), whose sum is σ = 14166048. Its totient is φ = 5993064.

The previous prime is 9398419. The next prime is 9398423. The reversal of 9398421 is 1248939.

9398421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9398419) and next prime (9398423).

It is not a de Polignac number, because 9398421 - 2¹ = 9398419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9398423) 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, 22495 + ... + 22908.

It is an arithmetic number, because the mean of its divisors is an integer number (1180504).

Almost surely, 2^9398421 is an apocalyptic number.

It is an amenable number.

9398421 is a deficient number, since it is larger than the sum of its proper divisors (4767627).

9398421 is a wasteful number, since it uses less digits than its factorization.

9398421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45432 (or 45429 counting only the distinct ones).

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

The square root of 9398421 is about 3065.6844260295. The cubic root of 9398421 is about 211.0336117400.

The spelling of 9398421 in words is "nine million, three hundred ninety-eight thousand, four hundred twenty-one".