83480221 has 8 divisors (see below), whose sum is σ = 92613600. Its totient is φ = 74604240.

The previous prime is 83480213. The next prime is 83480227. The reversal of 83480221 is 12208438.

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 83480221 - 2³ = 83480213 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 83480221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83480227) 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, 63666 + ... + 64963.

It is an arithmetic number, because the mean of its divisors is an integer number (11576700).

Almost surely, 2^83480221 is an apocalyptic number.

It is an amenable number.

83480221 is a deficient number, since it is larger than the sum of its proper divisors (9133379).

83480221 is a wasteful number, since it uses less digits than its factorization.

83480221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128699.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 83480221 is about 9136.7511184228. The cubic root of 83480221 is about 437.0467181210.

Adding to 83480221 its reverse (12208438), we get a palindrome (95688659).

The spelling of 83480221 in words is "eighty-three million, four hundred eighty thousand, two hundred twenty-one".