97983221 has 8 divisors (see below), whose sum is σ = 112629504. Its totient is φ = 83499120.

The previous prime is 97983211. The next prime is 97983227. The reversal of 97983221 is 12238979.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 97983221 - 2¹⁰ = 97982197 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 (97983227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39245 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (14078688).

Almost surely, 2^97983221 is an apocalyptic number.

It is an amenable number.

97983221 is a deficient number, since it is larger than the sum of its proper divisors (14646283).

97983221 is a wasteful number, since it uses less digits than its factorization.

97983221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81091.

The product of its digits is 54432, while the sum is 41.

The square root of 97983221 is about 9898.6474328567. The cubic root of 97983221 is about 461.0173152855.

The spelling of 97983221 in words is "ninety-seven million, nine hundred eighty-three thousand, two hundred twenty-one".