9876333221 has 4 divisors (see below), whose sum is σ = 9876763500. Its totient is φ = 9875902944.

The previous prime is 9876333199. The next prime is 9876333251. The reversal of 9876333221 is 1223336789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7834197121 + 2042136100 = 88511^2 + 45190^2 .

It is a cyclic number.

It is not a de Polignac number, because 9876333221 - 2⁶ = 9876333157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9876333251) 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, 178646 + ... + 227303.

It is an arithmetic number, because the mean of its divisors is an integer number (2469190875).

Almost surely, 2^9876333221 is an apocalyptic number.

It is an amenable number.

9876333221 is a deficient number, since it is larger than the sum of its proper divisors (430279).

9876333221 is a wasteful number, since it uses less digits than its factorization.

9876333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430278.

The product of its digits is 326592, while the sum is 44.

The square root of 9876333221 is about 99379.7425082195. The cubic root of 9876333221 is about 2145.5167600302.

The spelling of 9876333221 in words is "nine billion, eight hundred seventy-six million, three hundred thirty-three thousand, two hundred twenty-one".