9827213 has 4 divisors (see below), whose sum is σ = 10720608. Its totient is φ = 8933820.

The previous prime is 9827203. The next prime is 9827221. The reversal of 9827213 is 3127289.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9827213 - 2⁴ = 9827197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9827213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9827203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446681 + ... + 446702.

It is an arithmetic number, because the mean of its divisors is an integer number (2680152).

Almost surely, 2^9827213 is an apocalyptic number.

It is an amenable number.

9827213 is a deficient number, since it is larger than the sum of its proper divisors (893395).

9827213 is a wasteful number, since it uses less digits than its factorization.

9827213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893394.

The product of its digits is 6048, while the sum is 32.

The square root of 9827213 is about 3134.8385923361. The cubic root of 9827213 is about 214.1953917540.

The spelling of 9827213 in words is "nine million, eight hundred twenty-seven thousand, two hundred thirteen".