9738021 has 4 divisors (see below), whose sum is σ = 12984032. Its totient is φ = 6492012.

The previous prime is 9738017. The next prime is 9738023. The reversal of 9738021 is 1208379.

It is a happy number.

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 not a de Polignac number, because 9738021 - 2² = 9738017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9738021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9738023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623001 + ... + 1623006.

It is an arithmetic number, because the mean of its divisors is an integer number (3246008).

Almost surely, 2^9738021 is an apocalyptic number.

It is an amenable number.

9738021 is a deficient number, since it is larger than the sum of its proper divisors (3246011).

9738021 is a wasteful number, since it uses less digits than its factorization.

9738021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246010.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 9738021 is about 3120.5802345077. The cubic root of 9738021 is about 213.5454073264.

The spelling of 9738021 in words is "nine million, seven hundred thirty-eight thousand, twenty-one".