9143421 has 8 divisors (see below), whose sum is σ = 13932864. Its totient is φ = 5224800.

The previous prime is 9143411. The next prime is 9143437. The reversal of 9143421 is 1243419.

9143421 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9143421 - 2⁷ = 9143293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9143391 and 9143400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9143411) 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, 217680 + ... + 217721.

It is an arithmetic number, because the mean of its divisors is an integer number (1741608).

Almost surely, 2^9143421 is an apocalyptic number.

It is an amenable number.

9143421 is a deficient number, since it is larger than the sum of its proper divisors (4789443).

9143421 is a wasteful number, since it uses less digits than its factorization.

9143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435411.

The product of its digits is 864, while the sum is 24.

The square root of 9143421 is about 3023.8090217472. The cubic root of 9143421 is about 209.1074819366.

The spelling of 9143421 in words is "nine million, one hundred forty-three thousand, four hundred twenty-one".