83363221 has 4 divisors (see below), whose sum is σ = 83387200. Its totient is φ = 83339244.

The previous prime is 83363219. The next prime is 83363233. The reversal of 83363221 is 12236338.

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 83363221 - 2¹ = 83363219 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 83363221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83363281) 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, 5661 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (20846800).

Almost surely, 2^83363221 is an apocalyptic number.

It is an amenable number.

83363221 is a deficient number, since it is larger than the sum of its proper divisors (23979).

83363221 is a wasteful number, since it uses less digits than its factorization.

83363221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23978.

The product of its digits is 5184, while the sum is 28.

The square root of 83363221 is about 9130.3461599219. The cubic root of 83363221 is about 436.8424446901.

Adding to 83363221 its reverse (12236338), we get a palindrome (95599559).

The spelling of 83363221 in words is "eighty-three million, three hundred sixty-three thousand, two hundred twenty-one".