9943213 has 8 divisors (see below), whose sum is σ = 11961920. Its totient is φ = 8074080.

The previous prime is 9943207. The next prime is 9943237. The reversal of 9943213 is 3123499.

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

It is not a de Polignac number, because 9943213 - 2⁹ = 9942701 is a prime.

It is a Duffinian number.

9943213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9943243) 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, 37248 + ... + 37513.

It is an arithmetic number, because the mean of its divisors is an integer number (1495240).

Almost surely, 2^9943213 is an apocalyptic number.

It is an amenable number.

9943213 is a deficient number, since it is larger than the sum of its proper divisors (2018707).

9943213 is a wasteful number, since it uses less digits than its factorization.

9943213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74787.

The product of its digits is 5832, while the sum is 31.

The square root of 9943213 is about 3153.2860637754. The cubic root of 9943213 is about 215.0348816670.

The spelling of 9943213 in words is "nine million, nine hundred forty-three thousand, two hundred thirteen".