9821307253 has 4 divisors (see below), whose sum is σ = 10138123648. Its totient is φ = 9504490860.

The previous prime is 9821307217. The next prime is 9821307281. The reversal of 9821307253 is 3527031289.

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 9821307253 - 2⁹ = 9821306741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9821308253) 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, 158408151 + ... + 158408212.

It is an arithmetic number, because the mean of its divisors is an integer number (2534530912).

Almost surely, 2^9821307253 is an apocalyptic number.

It is an amenable number.

9821307253 is a deficient number, since it is larger than the sum of its proper divisors (316816395).

9821307253 is a wasteful number, since it uses less digits than its factorization.

9821307253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316816394.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 9821307253 is about 99102.5088128449. The cubic root of 9821307253 is about 2141.5247564352.

The spelling of 9821307253 in words is "nine billion, eight hundred twenty-one million, three hundred seven thousand, two hundred fifty-three".